Wow - I actually got a response on one of my suggestions through the Keystone web page!
I suggested they purchase the Dometic Duo-Therm ACs with the optional solar panel shroud and pre-wire a 12V battery dedicated circuit to the AC opening. Presto-bango - instant Solar Energy for recharging batteries, and almost non-visible. I explained it would get a lot of mileage on the feature list, with low cost.
Mike Spencer responded that they would look into the Dometic option. Of course, Mike works for the Big Sky plant, but maybe in the near future......?
I would install on mine, but I'm tired of wiring for the summer
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Now for the other 999 suggestions I sent yesterday