the side and rear glass I replaced myself with flat lexan sheets, I moulded the back glass with a heat gun. The windshield I bought from proglass, good quality, and has a coating to stop scratches. Beware I had my car painted and told them they had to mask it good off, because you can't use thinner to get off overspray like glass. Well they used all tape instead of paper, and it pulled the coating off in several places, I replaced it this year, where the coating was good, no scratches after 15 years, where it was gone lots of scratches.