The only solution that fits my needs is similar to this one:
http://www.wildboarproducts.com/racks.php
I actually drew up some plans before finding this. It would mount to the truck like an "over the camper" lumber rack. The legs would mount to an angle bracket that would bolt to the factory rails and the Flippac mounting bolts. The angle would obviously sit between the bed rail and Flippac. The legs could also bolt to the sides of the Flippac to keep it from "racking" (pun intended), or you could go with some thicker tubing. Weight is always a concern of course.
Lifting it could be done with a torsion bar or a hydraulic strut. You could just stand on the tailgate and muscle it over. There would obviously be a mechanism to lock it in place.
I want the ability to quickly pop the top on road trips without removing anything from the top. We tend to camp in different spots each night and this would only add 10 - 15 seconds to the setup/ breakdown process.
A cargo box and solar panel would fit nicely up there. For my needs, I would only have 3 bars up there, spaced about 30" apart, instead of a full cargo basket.
Another benefit is that you could mount some sand ladders, Maxtrax, or Rotopax to the legs of the rack/ side of the camper.
The easiest solution (IMO) would be to have it flip towards the back with some fixed tubing along the sides and back of the camper (below the lid). Two lift struts could be mounted to the fixed side bars and the rack would be hinged at the back. The only problem is that my 14' canoe, that would be hanging over the back of the camper, would swing down and block the rear window.
Someone build this so I can copy you!
Option B for me would be to get a lighter canoe or start doing military presses. Getting the canoe up there is tough.