Thanks for the tips, I'll try that out. I'm working on the layout of the crew area right now so I can do some experimenting. As for the RTG, it was something I was considering but I want to minimize radiation shielding as it is heavy and the backup generator would be mounted in the crew section for emergencies. I'll look again at them though. I don't think the engine would create enough thrust to damage the trusses (and I don't want to fix them

) so they stay, for now anyways. I may rebuild stuff, but probably not. We will see.