My rear window has the small crack in the upper left corner that is seen so much. Must add this is due to the window not folding correctly - something you can catch lowering the top in the manual mode (something you do not see lowering the top sitting in the car).
Anyway, to my point. I have been doing some careful measuring on glass rear cab window on some other cars. I have sourced one that is slightly narrower than our cab window and not as tall. The glass comes just below the fold point if the lower edge aligns with current bottom of the vinyl.
Would having a rear window approx 4" shorter be issue to most of you? For clear vision out the rear. Rear view mirror alignment would not be perfect is major drawback. Could even have defroster!
Next stop is to see if I can get one of the top manufacturers to send me a window section that is solid (no vinyl window)