Hi Guys

I love the look of these trucks and am after one for offroading, I know I will need to spend some pounds on lifting and larger tyres exc.. but I don't know what is a good price for a standard truck?
I have seen a few online in the UK and most have done between 25,000 and 60,000 miles and are asking for around the £5000 mark, the thing is I have found a 1998 truck for £3000 complete with gas conversion but it has covered a massive 156,000 miles.
I guess what I am asking is if I would be better spending the extra on a lower milage truck or should it still be good for a fair few miles yet?