Think about the minimal requirements for camping. When campings while you do not need propane stoves though they are helpful as good dry wood may be an issue, if tht is the case, you likely will be very cold.

You need a way to make fire and cook. This means you need two large cooking pans called stock pans. One is for heating water so you can purify it and for cleaning up and washing. Another is for meals.

Not only that, you need a cooler and a large water container to haul water some distance so it both have to be portable. What I recommend you do is have plastic storage bins to make us, but get actual containers and use a garden cart (not a wheel barrow as they are practically useless with heavy items).

You want to rig up a way to heat up items on a campfire with a grate and you ideally want to cook on coals for even cooking long term. Propane will run out pretty quickly. You also want a dutch oven or even two of them.

These items really make a difference. If your disaster lasts even one week, you will be roughing it just like you would be camping.

Having these sorts of things then translates to inexpensive family vacations and that is your future.