Any help on where I can find a back driver side quarter window replacement for a 1994 Jaguar XJS?

I've tried calling Jaguar dealerships, checking the internet, and calling some junk yards. Either I have missed something, or I didn't check everywhere. Maybe somewhere on the Internet I could order from or somewhere that someone knows of. If anyone could help, I would greatly appreciate it.|||There are several listed at the national salvage yard website.