For what it’s worth, the lithium option for one of the luxury brands of Hymer, now owned by Thor, has the price at 7,555 Euros. I believe that includes a 3,000 Watt inverter/charger, 250 Watts solar upgradeable to 500, and 3 X 100 Ah batteries for 285 Ah useable capacity.
I’m not certain, but think these motorhomes don’t have a generator as a base case, so in US cost difference may be even lower if generator is left off; although greater battery capacity would be needed.
Depending on battery capacity, it may cost as little as $10,000, maybe less.
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