You can get a new pump for about 300 Euro, labor excluded.
I am not 100% sure but i think the oil pump is located behind a cover plate behind the clutch housing, as on the Crystal.
The old UR1 had them under the differential housing, four M8 bolts to be loosened and there you got it. On the newer models it is mounted on the front disttribution drive of the engine, to make it independent of the PTO clutch.