Not enough!!!! Build MORE - FASTER!!!!!!!!
I've read through the whole thread today, well maybe not every word, but definitely every picture. LOL
I'd really like to do something like this "rib build", though more along the lines of a Bowlus Road Chief,
http://www.bowlusroadchief.com/. I was fortunate enough to see one of the half dozen surviving originals at a vintage camper gathering on WA's Long Beach peninsula several years ago. I want the light weight AND the aerodynamics. The CNC puzzle jointed arches are great. But since I don't have a CNC, or the skills and experience, I'll just hafta make my ribs of laminated 1/4" ply with a master template and flush trim router bit .
Looking forward to more progress, maybe even more than you...
Mike in FL