I bought an 05' r6 recently and had it trailored back home. To proctect it i used a heavy duty tarp cover and now the windshield is really scratched up. I'm 100% sure its from the tarp and I just need to know if there is ANY type of cleaner or something i can use to refurbish it back to normal. If not, how much would it cost to replace it with a new one? thanks very much for the advice!