crufty
Arcane
No that my vote counts for anything, but I'd explore shadows as an afterthought. If the engine doesn't have it as easy as "Interior.shadow_cast=true", then it wasn't meant to be. Ping the vendor to get with it, thats what they are there for, and focus on the game play elements. W/lightmaps, it seems like it would be trivial to activate the archetypical gradient shadow for important moving actors, though I have no knowledge of Torque, and so it might be incredibly difficult.
I'd worry about the graphics after the story can be played out from beginning to end...
I'd worry about the graphics after the story can be played out from beginning to end...