Door skin removal (72 Duster)

I have one last ace in the hole. I've located a parts car on Craig's List, and will be going after it tomorrow. I'm hoping it has a good door, (got the car pretty cheap???). I will skin the door, if the car doesn't have a good one. The duster has very little bondo, so I'm trying to keep it that way. The only welding I will have to do is at the bottom of the qtr pnls, and drivers side floor pan.
Howard