I like my 560 farmall and it would make a dandy haying machine..........its got plenty of power for such work as well as weight and GREAT brakes - I have stopped some very heavy load of logs on my 18foot flatbed and lugged them up some very large hills, I do have near new tires on it though.
Its a diesel and sips fuel..........I grew up on a 400 farmall and it was a great tractor as well, it would have plenty of power and be in that same price range, they are easy to fix as well. I did all of our mowing with an old JD sickle mower - I know most have moved on from those but they were great and never gave much trouble for me even as a rambunctious kid who didn't know what he was doing.
too bad you aren't closer, we have a ford sickle mower and I am going to sell my 560 as I just traded up to a 706 - and my 560 is well under your price range - 6500 for it and it needs NOTHING.....so good deals are out there just keep your eyes peeled.
I totally agree with all that atsah had to say and have survived wagon spills, wet hay, hot days, barns so thick with dust u could hardly breathe, burning hot belts, tying that was not right, bales that weighed WAY too much, falling bales from elevators, horses with an attitude, and the frustrating day of breakdown after breakdown after rain shower after rotting hay after people that don't show up after checks bouncing after etc................
but when the snow is flying and you are flaking hay and feeding like he said, its a great feeling to know you did it and provided for your animals and family