You've mixed a couple questions together. One is the required power (watts), another is packaging/weight of the unit(s), and the third is brand name factors. Each of those has some options, so the total picture can get complex.
You need enough watts to run the a/c plus whatever else you expect to use at the same time. You probably have 30A shore power in Hideout, so that's a much as 3600 watts (30A @ 120v). The a/c consumers about 12-13 amps @ 120v, so that's 1400-1560 watts, but an a/c momentarily demands much more power each time its compressor starts. Typically that start-up surge will need about 2400-2800 watts for 1-2 seconds before it settles back to the 1560 number. For that reason, we generally say that you need a 2800-3000 watt generator to operate the a/c and maybe a couple other small things. If you expect to use other electric appliances while the a/c is running, you need the entire 3600 watts.
A 3000+ watt genset is heavy and maybe somewhat bulky. If you only need to use the a/c once in awhile, it may be more convenient to use two smaller generators, adding the second in parallel to run the a/c but otherwise just using the single but smaller/lighter one. Further, some types/models are noisier & heavier than others. The best choice is an inverter type genset that runs at varying speeds to handle the load and on average will be much quieter than a constant speed or open frame "contractor" genset. Naturally, inverter gensets cost more...
Last is brand name considerations. Honda and Yamaha build great equipment, with a deserved reputation for reliability and very low noise & vibration. There are, however, solid-performing competing brands that should be fine for occasional use and cost 1/2 or less. I recently bought a 2000 watt inverter genset for under $400. I use it for back-up during power outages. You can get two of them for the price of one Honda.
In your case, I would probably buy an off-brand 3000W inverter genset if I camped often in warm (a/c needed) weather and a single 2200-2400 watt model if I could manage without a/c. Add a second 2000W model later if needed.