I can only speak to experience with 72" 7-Iron. If you can park on a hard flat surface, then getting MMM out from / back under tractor is probably the easiest part, especially if
FEL used to raise front wheels of tractor. Just turn the wheels sideways and pull / push. Drive over would solve this and might be worth it if parking is on grass / gravel etc.
I find the hardest part is attaching / removing drive from the
PTO. Awkward angle and can only get one arm in there (for me anyway). Also a couple of pins at rear of MMM that are awkward to insert / remove.
Depending on the $$$ value you place on convenience take a look at the Auto Connect MMM - seems to solve most of the problems, except how to move it around when disconnected