I've got a 276D (27 hp) powershift and it handles everything I throw at it. It works circles around my MF 4 cyl Perkins. 12 sp f vs 6, and 4x4 makes all the difference. The MF had double the power, but was always stuck. The correct gearing just didn't exist.You will not be happy with 27 hp i would go at least 40 plus 4x4 and bigger loader.
As said - hard to cover it with just one. ... Given your priorities and budget, I think the Kubota B series is for you. [Im not sure, but I hope MMM is available for those.] That "compromise" should reach both ends of your performance needs without much stretch. While compromising I think turf tires are in order ... with a set of chains for use when needed. If you can get a quick detach bucket it would allow you to leave the FEL on mostly.
larry