Thanks again for the input, although some of these techniques would require just as much time and effort as cutting and welding in new metal, I still appreciate the input.
I think what I am going to try will be:
Expose and clean affected metal on both sides with wire wheel/brush
Clean metal with Metal Ready (similar to ospho)
Wire brush again
Punch in center of heavily pitted spots
Fill those spots with Everglass or Epoxy cement with fiberglass in it, making sure to fill completely
Nub down any riased spots of the glass filler
Lay Glazecoat over entire area and sand to blend
Lay down primer
Lay down paint and blend as best I can
Spray cavity wax to the door's interior panel
Drive it and smile!
One thing that was suggested to me was to use an enamel primer and paint over the cheap Earl Shieb paint. Something like Rustoleum. Any problems with that.
I also have some of this: Metal-2-Metal
. Would this product work as well as the everglass or epoxy? I do know the stuff is as hard as nails and does not sand easily. Any money I can save by using stuff I already have will be a plus.