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I assume you'll be camping at public campsites so you'll need a generator that's quiet and meets environmental standards. They are expensive models such as the Hondas You're looking at a 3000w to power the whole unit including AC. A 2000w which is about 1800w running would be too small but would be fine if not for the AC. Check the manual if you have it. The AC probably draws 18 amps alone.
Paul & Sheri - Upstate New York - SUN-0258
Amateur Radio KD2KCY - VHF 146.520 MHz
2012 F150 F/X 4, 6cyl EcoBoost, Max Tow pkg
2013 Rockwood 8280WS 5th wheel
2006 Sunline Solaris T-1950