In the bottom picture does you lower fender not run in a straight line with the sill? My duster is the dame and i am thinking its a duster thing not an actual issue?
Sorry, just realized I never followed through on this. Took the pictures but never posted them.
Not sure if these help or not.
My '73:
Note that it has some really thick spacers pushing the fender out for some reason. My best guess is the door was rubbing on the fender and this made space? Not sure, but wouldn't be surprised it is related to the wrinkles in the frame I was concerned about earlier.