Based on the wattages you call out, I think the 802 is a better size for what you want to do... considering partial loading on anything other than peak, I believe you will not be able to sufficiently load down the 803 to keep it burning clean and not wetstack on you. Especially considering the ambient temperatures over a large chunk of the year, which will work to quickly cool the machine more than normal in the lower 48.Then that would be 60A as the upper limit. A little extra then about 63 amps. My 802 works fine with the RV and Im sure "can" work for the cabin, but at a longer charge time. But as you say, I dont want to run mad max all the time on the 802. Yes, we manage what we turn on and off and will continue to manage in the cabin. We dont plan on running a cruise ship type power load - just the essentials. The fridge and stove are gas. The biggest load will be the Splendide washer/dryer at 1300W. The Instant Pot is second at 1000W. Heat is a coal stove.