Ta chaps
Need to get out and drive and view some but all the info and input is greatly received and has certainly helps me narrow my options down from the original list !
I have a 2007 120 LC4 D-4D 5 speed auto, and really enjoy it. My recommendation would be to go for the highest spec you can find, upgraded leather, heated electric seats with adjustable lumbar support, easily convertible radio to double din for reversing cam (£300 will get you a great set up,) etc, etc.
Stay away from the LC5 for radio swap and suspension issues. There's threads on here about both.
Spare wheel was available on the rear door or under the floor per customer order in my year range, take your pick. They both have their good and bad points.
Triple quadruple check before you buy that the copper fuel injectors seals have been replaced for aluminium ones (see multiple threads on here and pradopoint on that subject!!!) or you'll be cursing forever. If they've been done, you should be all good to go. Phoning Toyota seems to get frustrating results, best to call any local Toyota dealer with the VIN and reg number and they will confirm if the change has been done or not. Ask nicely and they will tell you every time the vehicle has been into a Toyota dealership for literally anything
The common rail 3.0 litre D-4D engine sounds like a tractor when cold, purrs like a kitten when warm, will sit at 80mph all day long eating road miles with real comfort and ease, tows like a good 'un, and tackles rough tracks quite admirably.
There's a compromise to everything. You want a go virtually everywhere truck, get an 80 or 100. Pay more buying it, then even more lifting it and running it. You want an every day extremely comfortable ride with decent fuel economy, good value for money without breaking the bank initially, the late model 120 D-4D 5 speed auto is hard to beat imho.
Just my 2¢ worth, having looked long and hard at buying any/all of them within my budget, and very happy with my choice.
Out of interest, I live 1/4 the way round the world from the UK, and will be driving my truck back - the long way round. That's how much I rate it!
Good luck. Be philosophical, choose as wisely as you can. It's nice to get it right first time, but if you get it wrong it's not that big a deal, just sell it and buy a different one. Nothing is forever...
Lastly, let us know which way you go, and post photos of your new ride!