For the launch scenario: Looking at the screenshots, I ask myself if a heads-down orientation during launch might be more feasible?
It would need a wide cradle to support the outer walls of the habitat cylinder. This may be more stable than to balance the big habitat on the smaller utility module.
I tested it on a Starship, replacing the 50k Sat. Only the solar panel holder would need to be retracted closer to the body, otherwise the Starlab fits quite snuggly.
Why does this remind me of an old James Bond movie?
So the radiator panels are sticking out. CTRL 8 solar panels and CTRL 7 radiator
I can redo the panels. Just not sure what needs to happen. I can have the panels retract closer so that the inner rod hits the outer ring on the aft section.
FYI. going to be out for 1 week. So not expect any changes