I remember your adventures with CARBen, collapsed garage and all. I'm trying to find someone that will listen to me about formless construction. Arcimoto is too preoccupied right now.
Without their BFL, one would make a template that lays out holes at the vertexes and use a pneumatic nibbler to make the cuts in between [leaving flaps]. Before or after using a narrow roller on a rubber bed to score the other edges.
Then the flaps are lapped and pop-riveted for an Airstream look, else double-flapped and riveted inside for a seamless look. It could be pieced togehter in other ways, like a central band and nose and tail caps.
So what do you think?