[DavidG]

As their survival rate is high (evidently), they are not especially hard to find. I believe what Bored&Stroked has paid to be representative of their worth. The only difference might be for a matched set of the first version with both the part numbers and "RH or LH" after the respective part number cast in or the last version without any part numbers or letters cast in. Even then, the plus side difference would likely be minor.