3rd A/C - after market power management system?

wra wrote:
It seems to be more economically feasible to buy larger AC unit(s), rather than adding another.

Interesting thought.

In my current rig, I’m already at a 13.5k and 15k. The 13.5k is at the opposite end of the camper to the bunkhouse. I can’t imagine an extra 1.5k of cooling 35’ away will make a noticeable difference.