I've heard a pair of 2KW generators in action. Obnoxiously loud.
A hitch/bumper mounted 3.2KW unit will work much better and be much quieter. If you want to take it off the carrier, consider getting a carrier meant for a mobility scooter that has a ramp:
Harbor Freight Predator Brand Generators are not Hondas, but, Consumer Reports tested them, and they are damned close and cost halve as much.
The Champions are good as well. But they do cost more.
It would make life easier to get a big tire kit to go with it:
I suggest the wheel kit, because... I'm 70, and I'm still pretty fit, but I use one of these to haul my generator around: https://www.harborfreight.com/150-lb...uck-61867.html
I boondock, and when I can, I setup my 2KW generator about 100 feet from my rig, chained to a tree, and connect with a 12/3 extension cord. The cord matches the load, and I get far more peace and quiet. I use that little hand truck to haul the generator to and from its destination. The hand truck fits nicely in my bed-mounted tool box. You could buy a 30', 30-amp extension cord and get your generator almost 60 feet from your camper when the situation allows for it.
For what you'd save on a pair of 2KW Hondas or a 3500 watt Honda, you can buy the Predator, the carrier, the wheels, and have a first-rate class 2 hitch receiver mounted on your trailer to mount the carrier...one that would pull a small ATV trailer, etc.
Being able to run your rig on 30 amps instead of limping along with a compressor capacitor-assisted start kluge and 15 amps....or worse, struggle with two generators - e.g. engines, gas, oil changes, and so on - will be worth the effort and cost. It's the "right" answer rather than some kluge.
Advice on testing ANY new generator. With a 30 amp generator, set it up in the driveway, plug in your rig, and run the AC, microwave, and as many other appliances as you can ... up to the rated load ... to make sure it delivers rate power. Get a bunch of things running, then try to start the AC.
Tax the hell out of it and see when it kicks into overload.
With a 2 KW generator, setup near your home kitchen and run an extension cord from your counter-top or over-the-range microwave and run it for about 10 minutes (boiling water) on high. Start and stop several times, because startup is the hard part. A 2 KW generator should handle that load with ease.
If either generator fails to live up to those performance demands, bring it back and get a replacement.