[miket]

Im confused by that because i thought the roof sloping down was a good thing??? The top of the cap is flat. edit1: and the cab is close to flat.

I dont think the nose would raise noticably and the undertray angle could deal with lift.

Hmm your right i would have to make the inflatable tail hollow to do that and that would be more complicated.edit1: Maybe the second version lol.edit2: Id ither need alot of strings inside to make the tail a hollow cone or use a series of connected poles on the inside that unfold to make a tent of sorts around the tailgate.