Quite like one of these (British Army Dodge 50). Sort of a cheaper Unimog, which the British Army can't really afford, cept maybe the SAS as a special treat. https://c1.staticflickr.com/3/2900/14269654956_30a526b34d_b.jpg
I lived in the civilian version for a couple of years in London. Unfortunately 2 WD and quite a lot bigger. A yellow ex-British Telecom workshop truck converted to a camper, with double rear wheels
Bought it off a dodgy French geezer who distracted me with stories of driving an LVT in Indochine before Dien Bien Phu, and I forgot to try reversing it, which turned out to be absolutely terrifying.
I used to hit things, like factories and blocks of flats.
I don't, sadly, have any pictures of mine, but it was quite like this. http://www.dodge50.co.uk/c999yex-30-06-02.jpg
Always meant to take one on Westminster Bridge with the Houses of Parliament dwarfed in the background, but never got around to it.
(You had to keep a fairly low profile as an urban "New Age Traveller" in Thatcher's Britain, especially if you worked in The City.)
Had an idea of taking it to Mauretania when my contract ended, but incredibly this huge yellow thing was stolen.
Paid 1800 quid for it, saved me about 10,000 quid in rent, insurance paid out 1600 quid. Arguably my best automotive investment.
Bloke who did its MOT's said they often went to Africa, so I hope its still running somewhere.