Tinted windows??
I tinted my own. I did the back glass on a 67 Barracuda notchback and it turned out pretty good. I did not even have to take it out, but did have to do a couple of pieces to cover the whole window. The trick is to get them to butt up as close together as you can and creatively put slits in to handle the curve of the window.
Check with your local police department on how dark is legal, or you will get hassled by the police and made to remove any tint that violates the local ordinances. Up here, the back can be as dark as you want, but you must be able to see in the side door windows.