I have found that getting a glass company to want to do old cars, it takes an independent co. and guy with years of old experience.
I have had to get several windshields thru AMD and could find such no where else. The crating and shipping kills you!
We have a local place around here that's been doing glass since before I was in the hobby over 40 years ago... They will even come out to your house and pull/install the glass...