I looked quickly at the spec's.
You need to get the the following with the valve:
(requires connection of a pressure sleeve).
This sleeve converts the T2 port into a power beyond port.
If they cannot supply the valve with the sleeve do not buy it thinking you will find the sleeve elsewhere.
You will have to adjust the pressure relief valve built into this valve as it is too high for your tractor's system
Sometimes the power beyond feature is called HPCO for High Pressure Carry Over. This labeling convention is more European.
Try and have the valve ssupplied with fittings for all ports as the ones they use: Pump supply (P): female thread BSP 1/2 " which stands for British Straight pipe are O ring fittings which can be hard to find.
Dave