Congrats on a nice Massey, I have a TYM T474 Cab HST. And it's been an incredible reliable unit for me, I have 215h and it have yet to do a regen yet of the DPF.
As an update of sorts, the new to me massey got 20 hours on it over the weekend cleaning up tornado damage in town. I'm very pleased with it overall, just getting used to the touchy loader controls and the twin pedals instead of a rocker vs my new hollands. The loader lift is very impressive.
As for the oddly specific length criteria I had initially stated, this is why it had to be ~11' from bumper to 3pt arms. Happy to say it fits like a glove!
Massey 2860M Cab, Massey 1E.35, Gravely Pro-Turn 560, 1989 Ford D47 Dump Truck John Deere LX178
Those premium Massey tractors are nice machines. You are going to enjoy it. I believe the 1700M series have the Shibaura engines. My New Holland is Shibaura built and has been very good to me and your older New Hollands are as well. Congrats and enjoy.