I maintain little over 4 acres w/a
BX23 and it's just about the perfect sized machine for "maintaining" this sized parcel. The suspended MMM gives the best finish cut of all Kubota's tractor line and the FEL & BH though small do a passable job on digging and material moving. The smaller size allows it to get into the tight places a larger tractor can't.
In my case I don't need a bigger machine.
But,,,,,
Every now and then I'll drool over a
B3030 and would have gone w/ it or a
B7800 if I was starting from scratch. I had a larger tractor when I was building and sold it once I "tamed" the ponderosa and purchased the
BX23.
These 30hp machines almost double the FEL's capacity which is very handy in new construction and the BH has more reach and can accomodate a larger bucket. Plus they stand higher above all the obstacles one encounters in unfinished terrain.
Once most of the heavy work is done this size machine will technically be too large for your maintaining applications but since they don't weigh that much more than a BX, they wouldn't be that hard on your finished lawn, etc.
The MMM on these two 30hp machines is a ground contact type and although it does provide a very good finish cut, it's not quite as nice as the suspended BX MMM.
With your grunt work laying ahead as opposed to already being done, I recommend going w/one of the following: a
B2630 (26hp premium CUT), or the
B3030 (30hp premium CUT), or the
B7800 (30hp STD CUT).
Course putting a BH and MMM on either of these will cost quite a bit more than a new
BX24 w/MMM (or used
BX23 w/MMM) costs but you'll be getting a machine that can also be used for maintenance once the grunt work is done.
Course, theres many a thread on here where
BX22/
BX23/
BX24 owners have done exactly what your planning to do with these machines.
So if money is a HUGE issue you could still consider a BX. But IF you do choose to use a BX in a construction environment, you definitely need skidplates to provide the needed protection for the HST cooling fan and filter. They are both located very low on the BX series and are normally protected by the MMM but you do not want to have the MMM mounted when crawling around a construction site. Ground clearance will also be an issue.
In any case.
Good luck