Couple of thoughts on your generator dilemma(s):
On the quiet hours issue: our 2307C has Fantastic Fans in both ceiling vents - even on warm nights in California's central valley, we stay comfortable with those fans on low, with one pushing air in and one pulling it out. They're very quiet on low speed and both have thermostatic controls on them so they shut off as the temperature drops overnight.
Generators: we waffled for months before getting a single Honda 2200 - I wasn't willing to struggle with the weight of bigger units (as I'm sure you've found, units that put out 3000 + watts can weigh over 100 lbs). When travelling, we store ours a locked truck tool box in the pickup bed, and a big unit is too large and heavy to lift in and out) and we wanted the quietest unit possible.
By the way, it
is possible to power a smaller a/c unit with a single 2200 watt generator - see the article linked below. If we ever find that we need to run the ac plus other 110 appliances at the same time, we'll bite the bullet and get a second generator that can be paralleled with our 2200.
https://rvlife.com/air-conditioner-2...he%20generator.
With regard to storing a generator and fuel fume issues: Before storing the unit, if I turn off the fuel, let the generator run the carb dry, let it cool and close the vented fuel filler cap before storing it, there are virtually no fumes in the truck box when I open it the next day (the box lid is sealed with a weather strip and is not vented). Don't know if you have the space, but you might consider trying to find an airtight sealed metal box intended for storing flammables that would be big enough to hold a generator - that should let you store it inside the door of your trailer while you're in transit while keeping the interior fume free.
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