That list of equipment looks like a great start for an episode of “The Colony” (which I’ve been watching it over the Easter break).

What’s “missing” ?

-a torch/flash light – at work we have some rechargeable ones which are permanently on charge. Esp if you are there at night

-something to make in fire in (safely), seems like there would be stuff lying around which would be suitable, but a small stove or heater which you could use to heat a small room or cook on could be good (refilling that propane is a good start I guess)

-I know that you’re prepared, but some blankets and bedding for “the office” could be good. You can justify it as part of the first aid supplies to make a casualty comfortable.