OK, the roster sheet can now handle the new Vanguard variants, and module/BUK (Battlefield Upgrade Kit) functionality has been added. You can now add modules/BUKs like ships on the main entry page. They'll sort themselves into the correct column on the auto member list, and aren't treated as actual ships for the ship counts etc.
This should allow the ship counts to remain correct while also giving the ability to record outfitting flexibility. This is following the logic that a ship can only be one thing at one time, but it can be multiple things at different times with the correct outfitting.