If anyone is interested I have in my barn a vintage (1960's) Nu-Way Benson TractaFan. It's a crop conditioning / hay drying fan. It has a three point connect and PTO that drives two huge fans that will shift a huge amount of air. It can also be coupled to an optional heater or the tractor engine via optional collector to add heat to the drying air.
If of no practical use to a productive farm/smallholders, it would be a great piece to accompany a vintage tractor at displays etc as these fans are now super rare. See if you can find another one anywhere on the Internet!
It's been sat in my barn a good while now but was all greased up etc before being parked up. The PTO moves nice and freely by hand and it's in really good condition all round.
If you'd like more info, just let me know.
The picture below is not the actual fan but it's exactly the same apart from mine is in the original blue hammered paint finish.