Especially with poser, but with any other 3d app too, I would make a spaceship interior separate from the exterior model. This model is already huge and adding interior details would only make matters worse. I probably can`t convert the narcissus, it is just too large for my computer. Numanoid I would like that wheelie script. The main problem with the wheels was actually finding the centre, it is a similar problem you can get with eyes if the axis is not centred the wheels rotate in a wrong way, if they were real the car would bob up and down when it moves as some clown cars do (though the clown cars are deliberately made to do that for "comic" effect) I hope I explained it better this time.