Looks pretty insane so far. I'm a little concerned about FPS on it as well as it seems to be quite massive.
A few things I'd like to see if it's at all possible:
Since you say you're making several FS rooms ... I would like to request a space freestyle room
. Nothing super huge. Along the lines of ctf4 would be cool but maybe slightly bigger than that. Any ideas for the actual concept of the room I leave up to you.
Also I'm not really into cpm but I've never found a fs room that seems to be particularly good for cpm fs. The bo_beta fs is completely strafe oriented and doesn't allow room for any really good tricks imo and pretty much all other fs rooms are geared towards vq3. I'm sure there's some cpmers out there that would appreciate a good fs for them.