It's possible, right? And, so far, this is the only mod (hecque, the only game, maybe) where it'd work and make sense, lore-wise.

The bottom level could be a big, open area, like docking bay 357 on the Death Star (where the MF was  docked). Obstacles, rooms off to the side, a deep lift shaft. Above that could be the mezzanine level, going around the docking bay. Different ways up from level to level (ladders, stairs, and eventually turbolifts) would keep things varied. Above those two levels you could have one of those large gunner stations (yes, that'd require new statics), hallways, the conference room, a trash compactor, etc. Lots of options, but the trick is to keep the map from sprawling horizontally, and make most of it vertical. As a change.

I suppose this could also work for a possible map set on Coruscant, as well.