Here's a "windshield replacement" procedure post I made back in 2001 after a rock took out my windshield and I decided to convert to Lexan.
windshield replacement
BTW: After 5 1/2 years and 18K miles and a number of rock hits that would have for sure sent me looking for replacement glass, the Lexan windshield looks as good as it did when I replaced it. I noticed the note I originally included regarding wipers well, I've used my wipers a number of times and no scratches. I just make sure my windshield is clean if I expect to use them. Also I use Rain-X which has to date had no affect on the Lexan or on the coating.
Mike "monster"