Good plan, until you meet someone who needs what you have, can't pay for it, but has a gun.
If the SHTF in a major way, the population of any urban area will go feral as quickly as after missing ones days food. Once it starts, it will snowball rapidly. No matter how far from urban areas you live, you will be found. The further out you live, the more resourceful and skilled will be the hunters. Darwin and all.
That's a fair description of the Federal Government.
Buy a farm in a non-diverse area ASAP.
Doctor! Operate on my appendix or I’ll blow your fracking head off!
When massive devaluation events occur - e.g. as we saw in Argentina - civilization doesn’t end.
There is turmoil and increased violence. A whole lot of people become criminals and prostitutes who would never have done so otherwise. The police become more corrupt. It becomes dangerous to stop at stop lights because of kidnappers. Everyone begins to carry knives and handguns. The Government becomes more arbitrary and draconian, if that were possible. All this is historically attested from real-world currency crises.
But people still buy and sell. If anything they gain an increased appreciation of true money and the value of hard assets. They especially prize precious metals. Why? Because Gold and Silver have the attributes of money: they can be bartered-for-anything and they don’t depreciate.
You won’t do yourself any particular harm by insisting on storing e.g. 15 years worth of provisions and weaponry - in fact that is an excellent set of precautions to take.
But if you need to buy the services of e.g. an engineer to repair your generator or a midwife to deliver your daughter’s baby then you find not everyone is happy to be paid in small bottles of whiskey.