Then get the Kubota (HST preferably) with a bush hog and a finish mower. Get wide turf tires or even LGP set up and get comfortable with it. You may not need a specialty mower like you are thinking after you get used to it. If after that you do want more maneuverability then consider a Lazer Z for close work.
As a life long tractor operator I get a thrill out of inclines, side hills, and hard situations.