IMO I'd start with one Yamaha ( or Honda) 2000 generator. That should run everything on your camper except the AC. I originally got a Honda EU 3000 (or 4000??) years ago with the intention of running the AC on it and found I never needed it. I see your from CO as well. If it's to hot then go higher
Also, I just recently came across a thread on these: https://www.microair.net/collections...nt=30176048267
It's a "soft starter" for the AC unit. Basically it allows you to run your AC on a single 2000W generator. I have no personal experience with it but from what I've read it seems to work. If it does it's a heck of a lot cheaper ( and lighter!) than a second generator!
Enjoy your new camper.