1972 C10 Fender Patching

[jasonh10]

Hey guys, I have a 1972 C10 that has some rust damage along the bottom. The front passenger fender had to be replaced, but the driver's side is in decent shape. The front bottom needs to be replaced though, I think it's called the cup maybe? It's rusted away. I've looked and looked and can't find that part anywhere. Some places sell the passenger side, but I can't find anyone that sells the driver side. Also haven't had any luck with local junkyards. Any advice on where I might look?