Nowhere that I know of. I believe your only option for new might be the windshield and I'm not 100% sure that's available. Good luck. We have a good member who might have some used stuff. @Lee Robinson can you help?
Is vent glass and door glass the same for hardtop and convertible? I know vent frames are different. I probably have vent glass and door glass.
I would have no 1/4 glass for convertible. Lee