as for the sump levels and keeping extra water in it so you can go on a weekender- implement an auto top off...IMO
/IME it's a must have piece of equipment.
you would have a tank of fresh water somewhere, could be in the stand, or a closet down the hall, if you have a strong enough pump.
i like the JBJ ato's myself. redundant switches and easy as pie to set up.
just set it and forget it. the only thing about them is that an annoying alarm goes off when the switch is set off, until it shuts back off again.
some folks disable the alarm, some don't.