Call Standard Motor Parts in Nashville, Tennessee. They've got a good supply of reconditioned rods. I know, I did a lot of them myself! I don't remember if they have any old stovebolt stuff, but they have been in business for over 40 years, so it's a possibility. Another possible source is Gardner's Auto Parts, also in Nashville.
Gardner: 615-226-5122
Standard Motor Parts 615-297-1622
Good luck!
Jerry