From these 4 ship attributes in the DefaultCore.gf I will show the stats for the Sovvy and the galaxy
SHIP PowerPlantSpace WeaponSpace HullSpace ShieldSpace
Sovereign 9500 2900 6700 32000
Galaxy 8500 2200 6500 28000
This is just a guide, not an exact science
I just decided the Sovvy would be 1000 points for easy reference. So I
figured each of the sovvy's catagories would be 250 points times 4 coloumbs and walla 1000.
From there the rest of the ships are percentages of the sovvy ie: Galaxy power = 8500 divided by 9500 x 250 =224
round off to nearest whole #
Galaxy Weapon = 2200 divided by 2900 x 250=190 Hull =243 Shield =219 add the 4 groups and the galaxy rates as 876.
I plan on using this in my mod just so folks have a quick guide as to where ships that are added compare to Stock ships. Also will be basing the cost of ships roughly on there rated strength.