Windshield and rear glass question

I want to do a flush mount like on modern cars where there is a very small gap. the windows will be glued in with a small molding already attached. I will have to weld on some round stock or something to the opening and smooth it before paint.

At least that's what I WANT to do. Treblig has me rethinking though, looks pretty good man.
Member "snakebit" has done the flush windshield on his Frankencuda. I think he had to trim the windshield down to fit properly (risky business) but he did chop his top. Of course my way is a lot less work and less risky??
Thanks,
Treblig