addy; I had a thought re the selling; around here (Mi), it certainly has been the case that most sales are done in the summer months PRIOR to the new school season. So, if that's anywhere near the case in AZ, I can't think you'd lose much interest in those first two months as imo, most of the interest has already bought their new house for the year. It would seem you don't have to rush to AZ then (unless I'm missing something re a flush of new peeps on the market as of September/October) and can take the winter to ready the house for Spring 2016.
Re the plan; seems like it would be fine; you're not an over feeder, the plants do much of the work (including feeding the fish), the breathers are there when everything is ready and if you have the submersible, the pond sitters can unplug whenever you tell them. Not a lot different than I do it. And I would leave aeration as I don't see that as anything but a benefit; the pond sitters can unplug that too, if/when you decide.
Whatever you do, try and relax and not over-stress as life is too short for that...
Michael