The only glass they have for a convertible is the windshield and vent glass since they're the same as other models. The door and quarter glass are convertible only and AFAIK not reproduced.
I saw on their website that they can cut glass as they have a lot of the patterns.
Have you been in contact with them?
I saw this on their website.
I must say I had a good experience dealing with them myself. Good pricing , great product, shipped on time and very, very well packaged.
".....Glass Finder
If you don't see your make and model or the glass you need, we may still be able to locate or cut the glass for you. Patterns are available from the 1920's thru the 1960's. We also have many NOS glass sources...."