Don't care for the fact that this hardware, none of it, was stored in a dry barn, but hey that's just me.
Seeing that the farmer/seller would have a pain of a time fussing with listing the tractor, re-locating it to sell, if need be, etc., the advantages are all yours.
If this fella stops and thinks what a pain it would be to go through selling to someone else, and likely not make much more than you would offer, the price to you is going to be right. $9K. and that's my final offer.


Seriously, go low, very low.
It's the economy. Plain and simple. Competition from Zero deals on new equipment is stiff. Also, be sure the fella did his maintenance by the book, with good products.