I'm sorry to say that I have yet to find a meet of Skoolies here in AZ. I do know of two Skoolies, one in the PHX area and another in Flag, both Skoolies in the building stages. In fact, as soon as the one from PHX comes back from vacation, we'll be trying to get the electrical system hooked up in his bus.
As far as hooking up A/Cs on an engine alternator; I would rather recommend using a separate gennie. The reason for this is that one A/C unit would probably pull, at a minimum of about 1000 watts of power when running and would require 2000 watts of power on start up. Taking this into consideration, you would need a 185 amp alternator to power the A/C during startup.
You might be able to supplement the alternator power, during startup, with a battery bank, but I don't know how that would affect the alternator.
BTW, I'm also retired military (USAF) and I have a Crown that's a work in progress.