As a matter of general information, there is a fellow out here in Wichita, Kansas that is something of an old school artisan when it comes to heat forming poly and acrylic plastics. Danny is about my age and has better than 40 years experience doing this sort of thing for aircraft and other needs for plastic forming. I am especially happy to have found Danny because I want to use poly rather than acrylic for my wind screen and every company I contacted wanted to build some elaborate (and very expensive) custom made forming bucks. Danny will use the part I cut out of the body as the buck. He has the ovens and will slow heat the poly to get all the moisture out of the sheet before heat forming. For anyone interested in contacting him, here is his information:
Danny Decaire
KLP (K Line Plastics)
330 S. Water
Derby, Kansas 67037
316-788-3251 business phone