I definitely applaud your ingenuity, and your sensitivity to excessive noise. It seems like a lot of trouble though, compared to just using a 5000W 240V non-inverter generator, which could be used just for the well pump, (when needed - to fill toilets and rare shower) and isn't damaging any electronics, and can be had for under $1K.
Not trying to be insulting by any means, it is a nice option, especially for those who already own the suitcase generator.
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