Well as promised, here's what I bought
1998 LAND ROVER DISCOVERY SPECAIL EDITION SAFARI 300TDI GREEN | eBay
As you can see I paid to much for it
But had it a week now and drove it 200 miles home from Stockport, another 300 miles working this week, and just done another 200 miles driving in it back up "norf". Changed the fluids and filters when I got it home. Have to say after owning only V8's how impressed (neigh, amazed) I am at how a 300tdi holds it speed (70mph) uphill on motorways - no need to drop down a gear where in the V8's I would, I'm a convert to TDI's, just a shame it sounds and drives like a tractor at low speeds!!
Downsides, the "lots of service history" ended in 2005!!! Beyond that nothing really, the mot's confirm the mileage. It all looks ok and shows sign of regular home servicing. Little rust, although boot floor and rear arches have been replaced/welded, but lets face it that's a plus. Only the rear sunroof leaks, front one ok or sealed - I'm not going to open it to find out which, happy with dry. Diff and low ratio all engage easily. Getting the cambelt changed asap as not sure when it was last done, not doing it myself as I don't have the confidence.
Everything else works as it should, even the heated screen works over approx' 80% of the area!
Oh, and averaging 33mph, well better than 12mph from the V8's
Thanks for your advice guys, happy with what I have for the price I paid, and without your advice I probably would have gone for a TD5.