here in the states, there are a multitude of cheapish cruisers that can be outfitted much better than a four-runner ever could.
not saying it can't be done, but for $3000 total, including vehicle (luck, diy, and a generous amount of local cruiser buddies) have turned my 1987 FJ60 (gasoline) into a fairly capable rig. add another $5k and i could have a wonderful diesel overlander that i wouldn't hesitate to take anywhere in the world.
they are durable, fairly inexpensive to care for, and leak less than a comparable rover. i can't say the same for toy pickups and 4-runners, although some parts are interchangeable and indeed better designed or beefier on the smaller trucks. it's all a matter of choice in what you have though.