Just buy a small generator that you can switch to the well if needed.
We have 2 generators, but no switch or way of plugging something in for the pump. That’s the step that hubby won’t do right now. Said it wouldn’t take much to do it, and he’d do it if he had to.
I’d rather do it now than when there’s a longer term emergency. So far, we’ve always had more than enough water to get us through an emergency.
Generators are pretty good for most things, but we do live near the New Madrid fault line, so there’s several things I’d like to have done - just in case.