A-body armrest - stripped threads in door’s sheet metal

Thanks everyone for the suggestions. The car I’m working on is a 1971 Duster. I’m sure that one of these techniques will take care of my problem. If I use Super-Cuba’s method I may try to reinforce the cut with JB Weld since I don’t have access to a welder. If that doesn’t hold - I’ll have to find a welding shop to repair the cut. I included a picture showing most of the door.

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