I wanted power locks and windows added to my 89 dx hatch. Would it be easier to add after market parts for this, or could I more easily swap the doors off another car that already has power windows/locks? Which would be the easiest, and if I can swap doors, which models/years would be acceptable? Also, what other parts would be needed for this conversion other than the motors/actuators? Perhaps a "how to" link I have overlooked?