Tis true my fellow Dave. If you look at your T-top doors, you'll see a little slip on cap that covers the window frame at the front and rear. You should be able to pull those off and silicone them to the fiberglass doors after you saw the frame off. I figured this out when I had an 86 Capri T-top car I was going to build up. I THINK the window glass is the same (it just seals to a different weatherstrip along the roof) and the mechanicals are the same, so you should be good with the glass doors.

Oh, the mirrors are different too, but you can get those sorted out after the paint is done.