Two things:

More detail on water. I grew up on the coast and as I recall my dad stored a couple of gallons of water per person per day for three weeks, and just filling and storing all of those 5-gallon bottles was a chore. Also, at some point all of those bottles had to be cleaned and disinfected for drinking water - time consuming. We also stored some water for toilet flushing.

Chainsaws need oil and extra chain purchased, as well as maintenance etc.

PS. And if a neighbor owns a bulldozer be sure to remind him that you've been buddies forever...