edit: just noticed page 2 and had to comment on your scooters, love 'em! For some reason they made me think of Firefly... not sure why
Also, Don't disregard my previous questions, even though you answered them in page two. I still think you should go for the swivel engines and angle blocks near the aft, I'll see if I can mock up some design ideas if I get a chance to get at my Legos next week.