Chad, Craig, et al; very good points abut the push bumper. I would think an ideal one should have a "crumple zone," or self-sacrificing aspect, and thereby be replaceable. We will need to figure out the best design and the best attachment points for that and, as Chad suggests, the wing. I have seen, but can't recall, exactly how the FFR R one is rigged. Weld-in brackets would be nice parts for someone to produce.

I have been struggling, over the past two years, to talk myself out of buying a tube bender. Now y'all have given me the perfect rationalization to do so. (Not much of a push required).

By the way, I think it's fine for the thread's focus to wander in this direction, since it's all related. I would probably put my fuel cell in the passenger location if it were not for the desire to have a passenger seat. I may still have to.

Bill