Anybody ever done this? Yep, I know how to use a sewing machine, just need
a pattern or two and maybe a little advice. Already have the foil and
mylar to sandwich in the middle as a UV barrier.

This is still the doityourself airplane forum, ain't it?
Veeduuuuuubbbberrrrrrrr! Veeeedubbbbberrrrrrr! Where you at, guy?