Thanks to everyone here for the great information provided, and Mike for the site. I am slowly working towards building a teardrop in a plagiarized hybrid of the general Benroy and a Grumman 2. I plan to build a 1" square 1/8 wall aluminum skeleton, cover with .040 aluminum, insulate with foam to 1.5" wall thickness, and cover the foam with (probably cloth), similar to the headliner in a car. Here is a sketchup pic of the idea (special thanks to Danlott71 for his youtube sketchup guide).
Am I way off in my desire?
I hope everyone is having a great day,
Cole