Here's a pic of the motor with the bracket.

It's a bolt-on to the 1200 window regulator. The bracket is made out of heavy-gauge sheet metal.




This is a stock 1970's-vintage GM power window motor. The other side I used a Ford motor. Both have gears that mesh correctly with the 1200 regulator.




It's really not as complicated as it looks. On one side, you can see that I removed the coupe regulator extra linkage (it doesn't seem to need it ...). The two brackets in top right corner are limit-switches, where when the window goes up and down, it hits the switch and cuts power. But again, those aren't necessary, unnecesarily complicated, so I didn't use them on the other side (when the window goes up or down, it stops with or without a switch).