This is a TOS version more than a Discovery version of the ship, though the stats would work the same for the Discovery era but you would have to enlarge the ship a little to a size seven. This design fits in with the Original series ships as if the series of Discovery had been placed there from the beginning.
In building the ship I gave it weaker phasers and shields in accordance with the Constitution class being the stronger of the era. Yet this version of the Discovery is a powerful warship in confronting smaller ships as seen in the new series.
USS Discovery NCC-1031
Class and type: Crossfield Class Exploration Vessel
Commissioning date: mid 23rd century
Hull Systems
Size: 6
Length: 250 meters
Beams: 100 meters
Height: 57 meters
Decks: 12
Mass: 1,000,000 metric tons
SUs Available: 1300 - 2500
SUs Used: 1364
Structural Integrity field [1 power/10 Protection/round]
Main: Class F (Protection 25/37) <14>
Backup: Class F (Protection 13) <7>
Backup: Class F (Protection 13) <7>
Specialized hull: Atmospheric capability <6>
Environmental Systems
Basic Life Support [9 Power/round] <24>
Reserve Life Support [5 Power/round] <12>
Emergency Life Support (36 emergency shelters) <12>
Gravity [3 Power/round] <6>
Consumable: three years worth <36>
Food Processor Mark III [3 Power/round] <15>
Industrial Fabrication Unites Mark VII [5 Power/round] <18>
Medical Facilities: 6 (+1) [6 Power/round] <30>
Recreation Facilities: 6 (one main recreational deck; pleasant eating facilities; one large lounge; three gyms; three small lounges; one arboretum) [6 Power/round] <36>
Personal Transport: Turbolifts and Jefferies tubes [2 Power/round] <18>
Fire Suppression System [1 Power/round when active] <6>
Cargo hold: 10,000 cubic meters <1>
Locations: lower decks secondary hull and a few small in saucer
Escape Pods <5>
Number: 100
Capacity: 3 persons per pod
Propulsion Systems
Warp Drive Nacelles: Mark 4B <50>
Speed: 4.0/6.0/7.5 [1 Power/.2 warp speed]
PIS: Class H (12 hours of Maximum warp) <16>
Impulse Engine Type: Type 2 (.25c/.5c) [2/5 Power/round] <5>
Location:
Reaction Control System (.025c) [2 Power/ round when in use] <6>
Power Systems
Warp Engine Type: Class VI (generates 260 Power/round) <71>
Locations:
Impulse Engine[s]: Type 2 (generate 8 power/engine/round)
Auxiliary Power: four reactors (generate 5 Power/reactor/round) <12>
Emergency Power: Type B (generates 30 Power/round) <30>
EPS: Standard Power flow, +100 Power transfer/round <40>
Standard Usable Power: 268
Operations systems
Bridge: <24>
Auxilary Bridge: <18>
Inertial Damping Field
Main <48>
Strength: 8 [3 Power/round]
Number: 4
Backup <12>
Strength: 5 [2 Power/round]
Number: 4
Attitude Control [2 Power/round] <2>
Communications Systems
Type: Class V [3 Power/round] <15>
Strength: 5
Security: - 2
Emergency Communications: [2 Power/round] <1>
Tractor Beams
Emitter: Class Beta [3 Power/Strength used/round] <6 x 2 = 12>
Accuracy: 5/6/8/11
Lactation: one forward ventral, one aft
Transporters
Type: Personnel [5 Power/use] <13 x 4 = 52>
Pads: 6
Emitter/Receiver Array: Personnel Mark 5 (20,000 km range)
Energizing/Transition Coils: Class E (strength 5)
Number and location:
Type: Emergency [Power/round] <13 x 4 = 52>
Pads: 18
Emitter/Receiver Array: Emergency Mark 3 (8,000 km range)
Energizing/Transition Coils: Class E (strength 5)
Number and location:
Type: Cargo [3 Power/round] <9 x 4 = 36>
Pads: 400 kg
Emitter/Receiver Array: Cargo Mark 3 (18,000 km range)
Energizing/Transition Coils: Class E (strength 5)
Number and location:
Security Systems Rating: 2 <8>
Anti-Intruder System: [1 Power/round] <6>
Internal Force Field [1 Power/3 Strength] <6>
Science Systems Rating: 3 (+2) [3 Power/round] <21>
Specialized Systems: Stellar Sciences <5>
Laboratories: 20 <4>
Tactical Systems
<17 x 7 = 119>
Type VI
Damage: 120 [12 Power]
Number of Emitters: 120 (up to 3 shots per round)
Targeting Systems: Class Zero Accuracy 6/7/9/12
Range: 10/30,000/100,000/300,000
Location: several locations (three dorsal saucer, three ventral saucer, on ventral engineering)
Firing arc: 270 degrees
Firing Modes: Standard, Pulse, continuous
Phaser Control room <6>
Torpedo Launcher <12 x 2 = 24>
Standard Load: Type I torpedo (160 damage)
Spread: 4
Range: 15/100,000/400,000/750,000
Targeting Systems: Class Zero Accuracy 6/7/9/12
Power: [20 + 5 per torpedo fired]
Location: two forward secondary hull
Firing Arc: Forward, but are self-guided
Torpedo weapons control room <6>
Torpedoes carried: 50 <5>
Shields (Forward, Aft, Port, Starboard) <33 x 4 = 132>
Shield Generator: Class 2 (protection 350) [35 Power/shield/round]
Shield grid: Type B (33% increase to 465 Protection)
Subspace field Distortion Amplifiers: Class Gamma (Threshold 117)
Recharging System: Class zero (60 seconds)
Auto-Destruct System <6>
Auxiliary Spacecraft systems
Shuttlebay(s): Capacity for 8 Size worth of ships <16>
Standard Complement: four shuttlecraft (usually only has two shuttles at any given time)
Location(s): aft secondary hull
Not that I am a super fan but both the Shinzhou and the Discovery both make exilant additions to the Star Trek Universe I wanted them to be individuals but wanted them to be usable in the TOS era. So
USS Shinzhou NCC-1227
Class and type: Walker Class Science vessel
Commissioning date: Early 23rd century
Hull Systems
Size: 5
Length: 150 meters
Beams: 60 meters
Height: 34 meters
Decks: 7
Mass: 300,000 metric tons
SUs Available: 900- 1900
SUs Used: 1901
Structural Integrity field [1 power/10 Protection/round]
Main: Class D (Protection 15/22) <10>
Backup: Class D (Protection 8) <5>
Backup: Class D (Protection 8) <5>
Specialized hull: Atmospheric capability <5>
Environmental Systems
Basic Life Support [9 Power/round] <20>
Reserve Life Support [5 Power/round] <10>
Emergency Life Support (30 emergency shelters) <10>
Gravity [3 Power/round] <5>
Consumable: two years worth <20>
Food Processors Mark II [2 Power/round] <10>
Industrial Fabrication Unites Mark V [4 Power/round] <10>
Medical Facilities: 4 (+1) [4 Power/round] <20>
Recreation Facilities: 4 (one small rec deck; two gyms; large eating facilities; two small lounges) [4 Power/round] <24>
Personal Transport: Turbolifts, Jefferies tubes [2 Power/round] <15>
Fire Suppression System [1 Power/round when active] <5>
Cargo hold: 5000 cubic meters <1>
Locations:
Escape Pods <3>
Number: 60
Capacity: 3 persons per pod
Propulsion Systems
Warp Drive Nacelles: Mark 4 <45>
Speed: 4.0/5.0/6.5 [1 Power/.2 warp speed]
PIS: Class G (10 hours of Maximum warp) <14>
Impulse Engine Type: Type 2 (.25c/.5c) [2/5 Power/round] <5>
Location:
Reaction Control System (.025c) [2 Power/ round when in use] <5>
Power Systems
Warp Engine Type: Mark IV (generates 199 Power/round) <50>
Locations:
Impulse Engine[s]: one Type 2 (generate 8 power/engine/round)
Auxiliary Power: three reactors (generate 5 Power/reactor/round) <9>
Emergency Power: Type B (generates 30 Power/round) <30>
EPS: Standard Power flow, +100 Power transfer/round <35>
Standard Usable Power: 207
Operations systems
Bridge: <20>
Auxiliary Bridge <15>
Inertial Damping Field
Main <30>
Strength: 7 [3 Power/round]
Number: 3
Backup <8>
Strength: 4 [2 Power/round]
Number: 3
Attitude Control [2 Power/round] <2>
Communications Systems
Type: Mark III [3 Power/round] <9>
Strength: 3
Security: -1
Emergency Communications: [2 Power/round] <1>
Tractor Beams
Emitter: Class Beta [3 Power/Strength used/round] <6 x 2 = 12>
Accuracy: 5/6/8/11
Lactation: one forward ventral, one aft
Transporters
Type: Personnel [5 Power/use] <11>
Pads: 6
Emitter/Receiver Array: Personnel Mark 4 (15,000 km range)
Energizing/Transition Coils: Class D (strength 4)
Number and location:
Type: Emergency [5 Power/round] <10>
Pads: 16
Emitter/Receiver Array: Emergency Mark 2 (5,000 km range)
Energizing/Transition Coils: Class D (strength 4)
Number and location:
Type: Cargo [3 Power/round] <7 x 2 = 14>
Pads: 400 kg
Emitter/Receiver Array: Cargo Mark 2 (12,000 km range)
Energizing/Transition Coils: Class D (strength 4)
Number and location:
Security Systems Rating: 1 <4>
Anti-Intruder System: [1 Power/round] <5>
Internal Force Field [1 Power/3 Strength] <5>
Tactical Systems
Phasers <12 x 6 = 72>
Type V
Damage: 100 [10 Power]
Targeting Systems: Class Zero Accuracy 6/7/9/12
Range: 10/30,000/100,000/300,000
Location: several locations (three dorsal saucer, three ventral saucer, on dorsal engineering)
Firing arc: 270 degrees
Firing Modes: Standard, Pulse, continuous
Phaser Control room <5>
Torpedo Launcher <12>
Standard Load: Type I torpedo (160 damage)
Spread: 4
Range: 15/100,000/400,000/750,000
Targeting Systems: Class Zero Accuracy 6/7/9/12
Power: [20 + 5 per torpedo fired]
Location: two forward secondary hull
Firing Arc: Forward, but are self-guided
Torpedo weapons control room <5>
Torpedoes carried: 40 <4>
Shields (Forward, Aft, Port, Starboard) <22 x 4 = 88>
Shield Generator: Class 2 (protection 300) [30 Power/shield/round]
Shield grid: Type A (25% increase to 375 Protection)
Subspace field Distortion Amplifiers: Class Beta (Threshold 100)
Recharging System: Class zero (60 seconds)
Auto-Destruct System <5>
Auxiliary Spacecraft systems
Shuttlebay(s): Capacity for 4 Size worth of ships <8>
Standard Complement: two shuttlecraft
Location(s): aft
Once again I note that both of these ships are set to TOS scale.