Thanks all.
Yes, the plan is usually to be at higher elevation, but even then the poor insulation on the Tiger can't keep up if I'm in direct sunlight.
But, we will be full timing at points, so we don't always get the luxury of getting high up.
Geronimo John: good advice on replacing the A/C. We generally like buying used, then tinkering until we get it to where we want to be. So, for an Oliver it'll be Lithium, sounds like a new A/C, composting toilet, etc.