2-door and 4-door sedans have the same roof! The only difference is the door post and where it is located. In other words, the rear window and windshield are the same in both and use the same gaskets. As to where to find one, I do not know, but there are plenty of 4-door sedans around...

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!