Here's the front end of the door.

Power Windows were an option on the 70-71 cars. It's pretty easy to drill the wiring grommet hole in the door, but it would be more difficult to fill the hole if you didn't need it, so watch out for that if you're door hunting.

The thick threaded metal plate that the hinge bolts screw into inside the door is retained in place by bending metal tabs over its edges on the early doors. I suspect that the late doors changed to a welded in cage to retain the thick threaded metal plate, but I haven't seen this on a door yet. (I have seen it on the other side of the door hinge behind the kick panel.) This would be a minor difference that doesn't affect fit or function and is not visible after assembly.

Tav