Valiant Sheet Metal

Hi everybody,

Forgive me if there's a floor pan/sheet metal-specific thread this should be in. I'm dragging my '74 Valiant back onto the road whether it likes it or not, and I have three problem areas that are gonna need some new metal:

1. The entire passenger side floor pan is toast. I have eyes on a '74 Dart floor from Year One, but I was wondering if anyone knows if that's the same fit, or if there's a better place to source it. The piece I'm looking at is about $200
20200926_182200.jpg

2. The driver's side front has been repaired once, and needs replacing too. Looks like Year One's piece is $108. Driver's side rear is solid, it's already been sanded and painted.
20200926_182208.jpg

3. Anybody know how I can get away with not replacing this whole fender? I have no ideas for this one. This, of course, is the corner that was closest to the driveway-adjacent foliage for six years. The other side is clean as a whistle. I don't mind those little spots to the right, but I need to deal with the rot under the hood.
20201112_152947.jpg

Accepting any and all advice on where to source these/which other cars' pieces will fit. A full floor is about $400, but if I can avoid replacing the whole thing I'd rather do it in pieces.

Thanks so much y'all!