I agree, but just to add to the difficulty of estimating a repair like this, it takes a lot longer to fix someone elses old repair than it would take to fix an unrepaired panel. All of the pictures in the original posters photos show previous repair. Btw the aftermarket fender extensions I used on my 68 fit perfectly and were inexpensive. Big Chief did you fix that one or crush it?
All the rust spots shown is the original body, no work done. The only part that I know of that has been worked on(questionably) is above the rear wheel where a garbage truck backed into it and was fixed with bondo. I didn't even put that photo in because I know that's going to need to be redone. This will be a weekend driver for my dad in Oregon. I just trailered it down to take it to a garage I trust so we can fix it for him to drive again finally. Doesn't have to be perfect, but would like to get rid of the cancer as much as possible. The trunk has a couple dime size holes but that's it. Haven't checked under the rest of the car yet but I know it wasn't too bad a while ago(fingers crossed).