hi... no i haven't found a reverse shift rod yet. the OEM rods are much bigger than the reproduction ones. OEM rods are about the thickness of a man's little finger and the reverse rod has a sharp bend in the middle - like 40 degrees. if you have a pic of any factory rods you might have, please post them.
here's a pic of the OEM reverse rod on my stock 69 383 4sp Formula S fastback.