I think one AC will be fine. I would also switch water heater and fridge to propane. That way you'll have enough watts for converter, television, and maybe more.
While you can step up the ac so it doesn't pull too many amps at once by starting on low fan, then high fan, then compressor...
invest a lil money into a 'hard start' add on to allow the compressors to come to full power 'easier' than normal to lessen the initial draw...