I Don't beleive it would be possible to build one out of lexan, at least not in the original frame, there are compound curves. How are windshields like this made? They must be molded in an oven??????Clint your best bet is Ebay other than that you can form a new out out of Lexan or have one made out of Lexan . You wont walk into a boat shop and find one on the shelf though.
Rick