Dan, I am again truely impressed, not only with your thorough explanination of what you are accomplishing, but with the forethought required to actually accomplish the ultimate goal. Hey, I am only a right angle, glue and screw kind of guy. and thought I was really accomplishing things that I had never imagined, with the simple medium of wood..
I have to hand it to you, you are building something that is equivilent to the SR-91 blackbird, so to speak. Please keep us up to date, regarding the compound angles, continuous welded joints and their flawless grinding and blending. I can't even imagine the forethought that is involved in that process.
Hey, what do I know, all I did was slap some sides to a floor platform, install some roof ribs and plywood. I can't even imagine trying to figure out the compound angles and radiuses required in your build. Don't make light of it, you are building a perhaps, one-of-a-kind masterpiece that may never again be duplicated.
I can't wait to see the finished product, and invite you to swing on my sunny So Calif abode, to spend some time with a neophite, so I can brag to my friends how lucky I was to actually check out your one-of-a-kind creation. Keep up the continued pics, I can't wait for the next ones.
Roly,

Just a li'l ol' woody builder in sunny So Calif.