"600 hours" kinda depends if under heavy use/stress.
About 150-200 hours year for me and I change all fluids filters Apr.&Oct. mostly use in winter...I figure it's just good insurance.
….plus other attachment farm machinery models.
Be sure to click on I agree than section tab...not all tractor models are offer.
https://www.townlineequipment.com/parts-takeout-sale/
This might help not sure offers all models.
Remember to click I Agree than click tab your looking for.
https://www.townlineequipment.com/parts-takeout-sale/
Hmmm... depends on how much time and money you have to spend.
New indoor plumbimg,septic,electric wiring,maybe well,some work on foundation if need be just to bring old farm house up today's codes.