Thanks! The bulkheads are scratched by me, I'm a composite tech by trade so dumpster diving at work is like a trip to the hardware store. In a nutshell, The core is an aramid fiber honeycomb sheet about 3/16" thick with 1/8" hex cell structure, laminated on each side by 2 plies each of 3K Carbon Fiber pre-preg, 8 harness twill, and cured in a vac bag in an autoclave at 250degF and 100psi. Makes for an incredibly strong and light sheet.
Reference data was a combination of Drawings from ROTW, a couple of color photos I pulled off of the web and a quick trip down the road to the visitors center at Goddard Space Flight. They have, what I've been told, is the last remaining IRIS round on display so I took some measurements. Sad as it's outside and in terrible shape. I heard there was talk of doing a refurb.
Graphics are by Mark at StickerShock. His quality, service and prices are hard to beat.
Aluminum on the nose cone is paint and Aluminum foil tape (2"wide) went on the tail end and was burnished down with a balsa strip.
I also have an Aero Pack Motor retainer. DD will be handled by an Adept 22.