not sure how to fix this

mirror mounts on both doors are bout non existant. I could cut out the metal and replace it but personally I won't be able to get the front hump reformed in my patch. Doors are perfect otherwise. Thinking I can replace with sheetmetal, drill holes, and seal it up well I should be OK without the front hump?

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Can't really tell what model this is but if its a 67-76 A - Body I would try to locate a salvage door to use as a donor for the patch pieces. That would take care of having to hand form patches. There are all kinds of 4-doors scrapped that use the same formed mount for the mirror.