If an inverter is in your future, Skip the generator and go with a Honda EU2000i
I would get annoyed by the noise and vibration of an onboard generator due to the amount of time i sometimes run a generator. Last summer I camped at the NW Overland Rally, and I was running my two Eu2k gens about 10 hours per day, when the outside temp was 95+
If you plan on an enclosed trailer, then a EU2000i (or 2) is a no brainer.
Microwave is a toss up. I use mine all the time. Oven? I've used it maybe 3 times. I had origianlly planned on ordering an AF811, since not many long bed models are made. My order would have been no oven, upgrade to micro/convection, and also no skylight. I hate that thing.