I think a BX sounds about right. I have an older BX2200 with a 60" MMM, FEL and 2 sets of tires. Turf and AG.
5 acres. 2.5 to mow and 2.5 old farm field.......along with some trees.
BX works great for me. Plow drive, spread gravel, remove stumps etc etc.
I do wish my MMM was less labor to put...