I did powerwindows in my -64 Dart GT back around 1988. It took som fabrication but worked great. I used the motors from a Volvo 740 (I worked at Volvo at the time). The gear on the volvoparts fits perfectly with the gear in the Dart windows. The electricals took som working but that was because I wanted an older style switch and didnt like the modern switch from the volvo.
Sorry no pictures of the installation. I still have the car but its in the backcorner of my shop, behind other cars and a lot of other stuff.