Interesting thread. I had SoCal of Oregon mount a Rodbod body on their chassis w/leaf springs. It had 1 inch of clearance over the pumpkin, and they hadn't even noticed it. So I found a custom chopper fender, new but hacked up, at a swap meet for $2. That fender became the perfect bubble which I then welded into the floor of the trunk. Problem solved, although I would have preferred a flat trunk floor.