Whats wrong with yours? Or did you ever have any? I think I know what kind you are talking about. Ebay usually has them used, really good shape and price.
I checked on e-bay and they have a few windshields for tracker boats, but they dont know for what models they fit. They didn't look like the right ones for my boat. I don't want to make my own, I want to try to find originals. Thanks