Dave, I called around a few months back. The salvage yards all said around $300 for a set. Saw a set advertised for sale with the cam, lifters, rockers and rods for $650. To my knowledge, those did not sell. Another member bought a set last season for either $250 or 350, don't remember which.
Maybe someone else has a better idea, but if you decide to sell, let me know. I think I have a pair bought, but not for sure.