Since you ask about the .22lr tools, if you intend to 'work' after the WORL arrives, a sound suppressor would be a good thing to plan for. Threading a barrel is not really that difficult with tap and die, and there are adapters available to attach an oil filter yet get good visual using an optic on top of the housing. Get the adapters now, while still available. You don't need to do anything with them until the collapse arrives. After it arrives, you will not be able to acquire them.
Thanks.