70-71 AMD Fender fitment woes

I have 2 thoughts. First would be to cut a wood form, a little more curved than what you want since it will spring back and use a press to form it to the wooden form with a hydraulic press with wooden blocks.

The other method might would be to weld a TIG welding rod to the back edge of the fender, blend it to match the contour of the door, then use filler to blend the shape forward in the fender... I'm assuming it isn't off too much, otherwise I would not do this method.