For the size an 80 meter sphere falls in to the following
length = size 3,
beam = size 5,
heigth = size 7,
weight = size 4.
Now you could take the sizes and average them to size 5, go with just the length for size 3, or base it off the weight of size 4. Given how the nature of SU's are figuritive and not absolute it's really a mater of choice.
With the cargo containers, are we talking detachable like a train or like a CD tower (cases being the containers)?
Phoenix...
"I'm not saying there should be capital punishment for stupidity,
but maybe we should just remove all the safety lables and let nature take it's course"
"A Place For Everything & Nothing In It's Place"