Price sounds good. Have you talked to this guy? You want to find out what he does know about it like the mower deck looks wet under the motor and how long did it run and did the connecting rod come through the side of the block when it was running stuff like that. I have to wonder why he did buy it if he's giving up this easy use caution.
I will definitely ask as many questions as possible to make sure there are no ghosts in the machine. Hopefully.
I am actually looking to start a collection. I don't need this one to be a worker. I will use my other tractor for that. Right now I would like to strip it down, and rebuild it to like new. I really enjoy restoration projects, whether it be a tractor, motorcycle, car, house, etc.