Thats a hefty mileage but that JTD engine will do 500K if its looked after properly. I'd expect to replace the shockers if not already done. Check on the brake pads/disks, as it might be worth doing those sooner rather than waiting for them to fail. Nige does a good red-dot set of disks/pads for a decent price. all the other stuff like roll-bar bushes, bump-stops etc will have taken a pasting over 100K, so it might be worth having a very thorough service done, and get rubber bushes etc replaced when its fairly new to you, that way you factor it into the buying cost of the car not the maintenance cost. You are buying a high mileage car, which will need a little bit of work done over time, so get it out of the way now, and you can just get on with lovin' it!