31 rear inner fender replace

[Garychinook]

Howdy guys (&gals?) of the brain trust,
Haven't posted in quite awhile as life has run interference with toy projects. So I have decided to get back at it albeit very part time. My current project is replacing the rear inner fenders on my 31 rdstr as the previous so called restorer hacked in the current ones. Am just about to start welding and have just two questions at this point with attached photos.
1. I don't think the two little holes on the rear lower body strip wrap around are supposed to be there. Yes/No? (see photo)
2. What is a source for the two/four rivets that go to the vertical brace inside the car? The originals that I removed had a very large flat head unlike the truss,pan or round heads on all the other body rivets.

Thanks Gary