RE: where to buy lexan body material?
Ebay has lots of it.
How about a 2 ft by 4 ft piece of .060 for less than $20?
http://cgi.ebay.com/060-CLEAR-ACRYLI...QQcmdZViewItem
Or a 2ft by 2 ft piece that is 1/16 inch thick for $7?
http://cgi.ebay.com/060-CLEAR-ACRYLI...QQcmdZViewItem