Well I do what some call "expedition" travel though I have a '60 series not an '80 since Toyota felt we don't need a diesel any more.
My order of importance is as follows:
- reliability is of PRIME importance, there could easily be a week or more of waiting for parts for any Land Cruiser in Mexico.
- I LOVE my turbo and while it may seem like an oxymoron, I think the turbo actually makes the engine more reliable! At high altitudes the engine doesn't get the air it needs and runs hot, the turbo corrects that condition, not to mention additional power!!
- fuel economy (to last on longer stretches with few refueling options) though I've NEVER been in a situation where the stock fuel tank was insufficient. I also like to carry a couple of jerry cans just in case.
- I have a mild lift of 2 1/2" which is sufficient for most situations.
- I will be getting 33" tires when I replace the current 31". Mostly for better clearance. 4:11 diffs will go in at this time as well since the 33" tires will rob the engine of too much power and 4:11's will put the gear ratio to stock again with 33's.
- contrary to some earlier posts, I consider lockers important even though I'm not into rock crawling. It is surprising how easily one can get stuck in a muddy field (I've been there and needed a push from the locals). I now have an Aussie in the rear and I'll be having an OEM limited slip in the front.
- I have a PTO winch which in hind sight is probably not the ideal. Having been with Nickw when he rolled his '80
https://forum.ih8mud.com/showthread.php?t=109465 I can see that an electric winch, with gel cell batteries would be more useful for self recovery. The PTO and hydraulic winches that rely on a running engine for power are not too useful when the engine is inverted and therefore unable to run. With any winch of course one needs snatch blocks, straps and all the other goodies to actually be able to effectively use it.
- Ham radio, I have yet to need it in an emergency but it's there and it has both VHF and HF capability that should give me several hundred miles of range at the worst times and around the world coverage at best!
- invertor to power the laptop and charge camera batteries
- GPS to work in conjunction with Ozi-Explorer on the laptop and maps, either digital or scanned in, of the area we are traveling. Locals do not always know the way to you destination and up till this time we've been taking polls on which way is correct by asking a 1/2 dozen locals and going with the majority! I'm hoping that the GPS and Ozi-Explorer will make the route finding easier.
- dual batteries are stock on my truck
- full tool kit, OEM shop manuals and THE KNOWLEDGE TO USE THEM!!
- spare hoses, belts and other odds and ends depending on the trip.
- a very complete medical kit (AND THE KNOWLEDGE TO USE IT) including medication that might be needed for various maladies found in the areas traveled.
I do not have:
- on board water carrier as bottled water is readily available wherever I've traveled so far. I carry a 5 gallon water container when I travel for security.
- on board air, it would be nice but there are pinchazos or llanteras all over the place in Mexico and Central America. I do have a tiny $20 air pump and a tire patch kit if worst came to happen. I know I'd be there for hours with that setup though as long as I don't lose the tire bead, if that happens I'm DOA.
- fridge/freezer since there are places to eat most everywhere we have not felt the need to have several days food with us. If we do need that then our cooler will suffice for the short term.
- on board shower, we generally can find a place to stay in almost any town of village, and maybe the lack of shower will keep the bandito's at bay

- I'm not a fan of trailers, I don't like having it hanging behind me, it makes driving in heavy traffic more awkward and I can imagine it would get caught up on things in the bush as well. Besides, I don't carry enough stuff to fill the back of the '60 (when I'm not traveling between Canada and Central America) so why do I need the extra space?