It was a really good deal, although I did take a chance. It was on Gumtree about 40 miles from my home. I couldn't driver it as it had no MoT. it started 'on the button' and there were no engine rattles. The gear-shift felt very floppy and the diff lock lever was jammed.
I found that the gear-lever bias spring bracket was broken (cost £11 for a new one with springs). The diff lock lever was jammed due to lack of use and a strip down, free off, clean & lubricate worked fine. It is rust free and passed the MoT the day I bought it with a couple of minor advisories which I attended to with a week.
My Grandson fitted a Blaupunkt radio/CD player, I fitted a pair of PIAA driving lights, we sprayed the entire underside with black Waxoyl mixed with old engine oil, all warmed up first. I changed all oils & filters plus a RH front hub seal which was weeping slightly and fitted new front pads. So far I've done 3000 miles in it, including towing a Mk.2 Escort from Lincoln to Silverstone on a wet & windy day in December. It is very reliable (so far) and a pleasure to drive at 60 to 70 mph.
The reason I went for a Discovery 1 Diesel was because I look after 3 of them at my gliding club and they are super work-horses and very reliable. Also easy and cheap to fix. Indeed , today I've been changing the water pump on one of the club Discos, a 1990 200 Tdi and it took 90 minutes and cost £30.
If buying one make sure there is no rust in the inner wings. Rusty rear floors are no problem and easy to fix, but rusty inner front wings are a b****r.
I reckon mine is now worth between £1400 & £1600, but I won't be selling it any time soon. In fact I keep on using it locally instead of my BMW 7-Series.