We have a guy in our local club who builds lexan windscreens. Guys in our club swear by them. From the site: "Unbreakable, Bulletproof, Crystal Clear, Abrasion Resistant, 13lb Weight Reduction...What more can you ask for?" $279.95
I have no affiliation, just know that many of the guys have gone this route when the originals glass screens crack.
Here's the link if you are interested:
http://www.fastfreddiesfabrications....p?id_product=1
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