The water pump is a Landrover Disco 1/2 or P38 type, you can get them on fleabay for less than £50,
https://www.ebay.co.uk/itm/11461786...r=&widget_ver=artemis&media=COPYor half that if you don't mind chinesium. My wp bearing is a bit noisy now, but then it was less than £30, and has done about 50k miles. Its easy to replace, unless the bolts shear. Replace bolts with stainless versions!, worth an extra £20 or so.
Do share if you find a good value clutch replacement, i'd like one on the spares shelf. My cars done 122k miles now, and I don't think there's any issue with the clutch plate, fork or thrust bearing. The input shaft bearing is noisy ( a few quid for the part, but I'm not taking the engine out just for that) but my clutch master cylinder spring did fail, which felt like the clutch had gone. Now my clutch pedal return/tension spring has sheared, so there's a bit of floppy slack at the top of the pedal, but I can still drop the clutch and wheel spin off the start line, and the torque carries the wheel spin through second and third, especially hairy if its a bit damp!