If you'll go far enough back on the Utopia Planitia part of the forum, you'll find some guy did ICON Statistics for TOS and TMP UFP and Klingon Ships, some of them FASA conversions, some all--new designs.
He hasn't done the Romulans, Gorn or Orions.
Here, I will flesh out the FASA Gorn Ships in complete detail, in multiple formats.
Ed Note:
I assume the MA-12 and shorter fatter wedges are 'older' designs, and that the MD-8 and longer, sleeker wedges are 'newer' designs.