Question about RV'ing in South America

At this point in my life, a Unimog type unit will not work for me. My kidneys cannot take the beating. Having read some comments here, I will "ruggedize" the unit to a degree. The unit has a CAT engine (CAT service available everywhere) and Allison transmission. So far, I think HDuty shocks, oil and tranny coolers, re-routing the air intakes, and computer (ECM) upgrade are in order...

OP: I think that you are on the right track, moving towards hardening your existing rig. It appears obvious that you will not compromise living unit size and amenities of your Class A, and as I carefully outlined in my earlier extensive list of extreme expedition RVs in my earlier Post, commissioning such a vehicle in the size you have currently, would mean a truck with at least 3 axles to accept a 30+ foot living unit, at a cost in the $1.2 to $2+ million range (for a new unit).

My critic (Charlie) is passionate about the Unimog RV genre vehicles, but as the OP has written, he isn't willing to compromise on what would be tantamount to a U500 sized truck (a Volkswagen-sized expedition truck {the base price for truck alone is in the $110,000 range, new) in the grand scheme of things!) with a pop-up camper attached to the chassis (or, what would constitute a living unit so small, it would perhaps offer only 20% of the living space that the OP currently enjoys; that cramped compromise he would loath I'll bet).

It would be very interesting to Post here how the hardening of your Class A Proceeds!

Now, to my critic:

Who would buy a $1 million, $2 million, 3 million extreme expedition RV? The market globally is potential huge (relatively speaking)!
In Switzerland alone, there WERE 283,000 households with a net worth more than $1 million (that statistic was 5 years ago; today, it is probably 350,000!). Among those resident families, 44% of them share the bulk of the entire country's wealth (that means 124,520 of those households could afford to buy 5 to 12 of those $2 million + 3 axle expedition vehicles EACH, and not even see a blip on their personal balance sheets. Let's say that the global market for these supposedly "...oil Sheikh affordable only..." extreme vehicles I calculate to be potentially 0.1% of the estimated 12,000,000 global multimillionaires in 2013 (I'm not even including the potential from the 1426 global billionaires in my figure!) is a staggering 12,000 likely/potential buyers. There are potentially hundreds of thousands of prospective buyers of lower cost small-scale used Unimog truck/camper combos Globally. There are tens of thousands of potential buyers of mid-sized Action Mobile brand truck/camper combos globally. There are perhaps 10,000,000+ owners of traditional RVs Globally with an initial purchase value of $100,000 or less (my estimation). IMO, the marketing effort done by the many manufacturers of Unimog-genre trucks upfitted to extreme overland RVs is pathetically lacking! Wealthy individuals are typically (statistically) in far better health than someone just getting by (like the middle class), and are very active into their 80s+, so inferring, age cohort in this case would have little to do with not being able to enjoy such a way of life.

That's all I have to say on the subject of this genre of RV, as the OP has clearly stated that he will be hardening his existing Class A; this hardening endeavor I remain highly interested in following :)