Great post OP! We have two Water Bob's, one for each bathtub. They used to be easy to fond online, but as of a few months ago, it was difficult. Have not looked since them. They are an awesome item to have.

Butane stove - Check.

Kerosene heater - Forgot about those! Excellent heat source.

Toilet - Excellent idea!

We have a solar powered charger for our phones and other items that will plug into it, like rechargeable flashlights. We still rely on battery flashlights though.

Thank you for this OP! Such well thought out and helpful information!