Having squared away most of my 73 911T engine issues I am starting to think about body work. The biggest rust issue is a strangely isolated patch at the bottom rear of the driver side fender where it meets the front of the door. It’s rusted clean through (inner as well) in a triangle hole that is about 4” high and 3” wide at the bottom. There is some bubbling under the left headlight. I have a super talented body shop in town and could have them weld in a patch (or maybe I do it), or I could just buy the Dansk replacement fender. I bought the car from original owner and everything is totally original, and that’s the way I want to keep it. So my question is really from a value perspective - forgetting about the cost of either fix (I don’t care too much), does it hurt the value much to have a replacement fender versus top notch resto weld in patch? Thanks and BTW the one thing that is not original is that I think it had a repaint 25 years ago in factory silver metallic.