So far, nothing happening with more detailed requests for photos, etc. I am back to the idea of just the roof rack, and sleeping in a tent or inside the G.
The drag coefficient of a G is already = to a lumpy brick. Adding more lumps and overhead height (folding tent) does not further my cause all that much. I can see the addition of the rack and gear, allowing more space inside for stuff. I really do not want fuel inside the living quarters, even though that adds to overhead weight. Karl's fuel carry system (side of vehicle) seems interesting too.