I like it. Not for the host but the player.
some ideas:
lowhitpoint fast raiders for cruiser slot one
highhitpoint slow cruisers for fleet infigting slot two
fastcarrier low hp high armour for skirt the gravwell limited to 1 strikecraft and thus cheap slot 3 (special power ingnore phase inhibitor raise cost lots)
slowcarrier high hp/ armour that has long phase charge up, 3 strikecraft slot 4
super long range missile cruiser, slow, high armour very expensive.
love the idea, not sure how the abilities could be tweaked to this change but would be neat as option
games would be a real surprise, help infocards would have to be more infromative though.
You could design you ships offline and opponents could have a couple of minutes to see the ship designs prior to game start.
Although how to keep this player design of ships faithful to the race traits established in the vanilla game requires consideration.
Great Idea Ccsmoke!!