Crazy idea here - re-surfacing EXTERIOR with wood?

Your glass skin may be glued to Styrofoam insulation sheets. You might be looking at a complete wall rebuild. I believe the teardrops just have a sheet of Luan for their external skin to bend easy. They also have the advantage of being easily stored inside. Any wood replacement is likely to be thicker and heavier than the glass.

A RV surplus place that I visit sometimes has large sheets (30' or more in length) of fiberglass. A good wood finish is so warm looking. Good luck on whatever you decide.