Camshaft and eccentric ring 1 or 2 pieces of key stock

I spent 4 hours looking locally and everything I found is a typical half moon. None of them will reach past the end of the camshaft to fit in the eccentric ring. I went to Orielly, Autozone, Advance, car quest, and 2 small hardware stores. All the pics I have seen on the Internet show a typical half moon. I found one that I could grind on and possibly make work but I was hoping to find one that fits exact.