I put power windows in my Sentra. They never made any 2dr B13s with power windows, so it was a little more complicated since I had to use the motors from a 4 door, and hack up the cable jacket on my doors...etc.

I think if you can just get a good deal for both doors, do so, it will save you a lot of work. I paid $125 for 2 motors, and master switch from 200sx (I dont have a switch for passanger side).