I have an Oliver OC3 which I inhereted from my father-in-law and extensively used around my property.  It is a very reliable and servicable tractor (I wish my car was as simple).  However, I am no expert so I would like your feedback on how an individual would place a value on this antique.  My *&amp;^%$ homeowner's association is breathing down my neck to remove Ollie from the property.  

James in Washington State.