The question is way too broad and I will be a smartass - IH 1066.HydroBrother - welcome to the forum!
That question is really broad - you need to cut hay, bale hay? Move bales? Why so much HP?
Doing any mowing? If so - you have a 7' or bigger batwing? Need a cab? What $$$ amount you looking to spend?
I'm not trying to be a smartass - just define the question a little more and those that have those big machines will jump in
I would imagine you will need to be in the larger "M" series
M9540 sounds about right but a bit low for large windrows.Looking at kubota. 4x4, loader, open station. I need at least 80 hp pto for my equipment. Need to lift comfortably 1500 round bales.