Unless you get a 125 it wont be an upgrade. When chopping corn a 114 hangs in there longer than the 117 powering the chopper, but when driving away the 117 picks up smoother because of the turbo lag of the 11441.
The 125 has a waste gated turbo which picks up smooth and delivers better torque down deeper. A 16 valve 135 would be even more of an improvement.
Also the 117 is a hard trade once you want to get rid of it. I've been following the same tractor for 4 years now, here in Holland, one dealer tried to sell it but nobody wanted it, Then somehow they sold it to another dealer, and now that dealer is offering it for more than a year.
For a
Zetor engined tractor there is allways a market. If you have a 117 you'll be better off selling it in pieces: the engine to Same people because they had a tendency to blow an oil channel, loose oil pressure and therefor spin their crank bearings and/or throw a rod, and the gearbox in lots of individual parts that fit all those 11441 out there...