A dealer has a 1979 B6100 4wd. with 1850 hours. Its in pretty good shape and everything seems to work. Vertical exhaust. Needs a paint job. They just installed new rear axle seals. They say it came from a nursery. It has some type of spinning hubs on the outside of the front axles. I thought it may have been for some type of sprayer.? Dealer wants $1800 for the unit with no attachments. Is this a good deal or just average price? I would only use it as a hobby tractor for pulling a cart around or something like that. Seems like a lot of hours to me though if not on the engine then on the unit as a whole. Any thoughts on reliability of these units?