2004 Chevy Cavalier Power window

Electrical problem
2004 Chevy Cavalier 4 cyl Front Wheel Drive Manual 86k+ miles

My passager side power window is not working properly in that it starts to move then stops, and you have to wait a few minutes to move it again. But it will only move a little bit before stopping again and having to wait. I believe the motor is worn out and thermally 'tripping'. I've pulled the interior panel off and checked the window movement and guides for any obstruction, and it moves freely. Unfortunately the motor and gearbox are riveted into the door's subpanel and I can't see the linkage connections easily. Is replacing this motor an easy task? Do I just drill out the rivets, pull the motor and the linkage comes free? What is involved with pulling this motor, or is there some other electrical component in the circuit which may be casuing the problem?