[Billy-O]

I suggest pre-painted aluminum sheets for your skin.... such as the kind used on race car bodies. The aluminum are available in many different colors Pop rivets are easy... use a good step drill or a sharp twist bit. It'd be real nice in install the plexi-glass, polycarbonate or even tempered glass with some kind of molded H shape rubber if it could be had (I'm sure you can....just got to look around).