private garden. not a business as of now. about an acre in size. there is no primary work area. equal time managing all aspects of property but i dont know for sure until we get going. 30% of the land is slightly to moderately sloped. about 30% will be kept forest with trails. i am a mechanical engineer so able to work on things moderately but not as a full time job. also i do not have much experience with tractors specifically and hydraulics. general maintenance is fine. last week the "chain" fell off of a rented trencher (4') and i was able to get in back on and tension it properly.
Definitely a PTO powered roto-tiller in lieu of a tractor + Disc Harrow combination.
Definitely Four-Wheel-Drive. Definitely HST transmission on slopes.
Definitely FEL.
PTO horsepower 25 minimum, which will be 33-37 engine horsepower. If buying used, 30 PTO horsepower, minimum.
Look for a tractor with at least 2,600 pounds weight, without the FEL. As you have hills, consider tractors with a fairly wide stance; some are available with adjustable wheel widths.
Tires are always a personal decision, however most tractors with an FEL have R4 Industrial tires, which are fatter than R1 ag tires, to support FEL loads. You may find R4s contribute marginally to stability on slopes. I have R4s.
Whether to fill/load the rear tires is another personal decision. I am against loading when a tractor has 4-WD and the land is flat, but loading tires, where the weight is in the lower 2/3 of the tire, certainly improves stability on slopes.
My Kubota L3560 is just right for my needs, better than the lighter B3300SU I had before. However, the L3560 uses significantly more diesel, (.4 gal/hours without PTO engaged) which is a pain to transport from the gas station in five gallon cans, fifteen gallons at a time.