Here's a photo of my .060 thick PC (polycarbonate) Type 181 Thing windows:
These will sell for $100 for 4x (plus shipping) of them with your choice of oversize head all alum rivets (w/ back up washers) or set of black button head bolts and nylock nuts.
For an added $20 you can get them in .090 thickness.
Add $15 for a large can of "210" special Plastics wax and shipping included too!
Facebook for new product releases and special deals: Werks Berg
http://stores.ebay.com/werksberg
Search the Samba under werksberg for our products on sale there too....but order direct on here for a special IAC shipping savings
SOS: Support Our Shops....
werksberg@sbcglobal.net