I have no idea about Jeep running costs or reliability but I know the Jap wagons reasonably well and although Landcruisers will be out of your £2k budget, you might find a Shogun for that price if you look around, although it might be a bit ratty. You definitely should be able to get a decent LWB Isuzu Trooper for £2k - a mate of mine recently got a 130,000 mile LWB Trooper in decent nick for just over a grand. As suggested above, the Frontera / Monterey (rebadged Trooper) would also be well worth thinking about.