There are numerous charts of typical amp draws for appliances. Heck, more recent Onan generators manuals have them. The tougher question is which ones run in your occasional overnight and how many hours? Know that a toaster draws 1000 watts doesn't help a bit if you don't have some idea of how many hours it is actually on in a given time period. Might even be zero.
Here's one such list: https://www.cummins.com/news/2021/04...-need-power-rv
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Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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