Mike, I asked this same question recently w/ no responses. The catalogs list 32oz, 36oz, pinpoint vinyl, and some other options, but I'm not sure what to make of those choices. If you get some good advice, please let me know. Thanks. Tom
I took mine to a good upholstery place and bought it through them installed it was around $ 300. for a plastic window. I would recommend getting one with a glass window the plastic scratches and is hard to clean without making more. Find a shop that either has a lot of old cars being restored or high end cars in their shop. Then you know they are good. the place I took it to is known for specializing in old cars. I know another place where the do high end cars and their priced a little higher than the other place but both do good work. If your car will be inside the top will last forever. small price to pay for that.