I am not sure how hilly or how many trees, buildings etc. your property has, but given my experience I wouldn't have a tractor with a MMM again. I had a Kubota BX2230 that I bought because I wanted an all in one machine and just like you do. I had an almost 2 acre lawn to mow and a 5 acre pasture with a barn, house, trees, driveway and a lot of hills. I used the BX2230 for 5 years to mow, brush hog, spray, move mulch, dirt & gravel... The kubota did an ok job at all the tasks, but was a little small for my needs. What I realized was that there wasn't really a good all in one machine that would do what I wanted and that I hated removing and reattaching the MMM. It was a PITA! This fall I bought a CT235 and got rid of the kubota with the MMM. I am in the process of finding/buying a ZTR for the lawn mowing, if I had a large flat area I might have looked at a 3pt finish mower.
My 2 cents, I know others with different circumstances may have different ideas.
Good luck! I hope you find something that works for you.