Ok new guy on the list. I see a few have tried composite sandwich construction. Costs are likely higher but weight could be reduced and rot eliminated. Generous radii on all outside corners are the real appeal. That being said some interior bight work and cold molded veneers would warm it up a bit.
New guy who appreciates the craftsmanship that can be expressed in these small campers!
Regards
Matt
Reference Foldaplane concept animation in the link below!
http://www.visionaircraft.com/foldaplane/index.htm