Glass Rear Window for a ’64?

I really dislike the foggy, distorted rear window on my '64 Valiant convertible, and am curious if anyone has modified their top to use glass instead of plastic? I think a larger well would accommodate glass if it was smaller than the OEM version, but I'd hate to increase the already large blind spot. It would also be nice if there was a way to eliminate the zipper.

Any ideas?
Author: GaryS