Mudstud
1/2 ton status
Careful with the lexan as it tends to scratch and after a while you can barely see out of it cuz the sun reflects in the scratches and looks horrible. Speed glass is the shiz but it's pricy.

You can buy 1/4" polycarbonite for a lot less than $200 at a local plastics shop down there. If you provide them a template they can even cut it for you with a router. Do they have "TAP Plastics" down there?
Not to mention shipping on a 4'x8' sheet.![]()
For that price why not build your deal to fit a real glass window and use silicone and a tabs or a something to hold it in
If you do a google search for "plexiglass" in your area, there's likely to be a lot. Here's one I found which you could likely buy a 1/2 sheet and cut it yourself or have them do it.
http://www.ocip.com/
Have you checked your local metal supplier
I know the place I get my roll cage tubing from can get plastics