Looks like it's quite a heavy implement on the tractor. Could be a custom unit made for those yannies from the day. Around here tractor prices are very high. That one would get snatched up quickly by the private "tractor" resellers who clean them up for a major profit. Perhaps massive profit.
if tractors in your area really sell that high why would someone not just buy up a bunch in california or like texas and haul them back with a duely and like 4-6 on a trailer?