I haven't done it, but have been wondering the same thing. In your case, I don't think you have anything to lose. Might as well give it a try and if it doesn't turn out you'll be in the same spot that your in now...looking for a third door.
Here is a picture of mine. The bottom tub thing is rusted so I need to take the door apart to put a new bottom tub in the door, and the skin has some long dents across the bottom. Do I put a new skin on while I have the door apart to put the bottom tub in?
