Until you have these basic preps, you shouldn’t spend a dime on any other preps. Having a ham radio that allows you to talk to the world doesn’t help you if you don’t have food or water. The best generator in the world is not edible. An arms room full of tons of guns and bullets doesn’t help you if you run out of food and water.
Just one thing here. If you have a bug-out plan in the immediacy of whatever, and assuming your vehicle will go, do you think you are going to haul 90 days of canned goods? Plus whatever other gear you have? And do it (meaning load up you vehicle) in less than 30 minutes while everyone else is saying… WTF just happened? Think around that. Same goes as if you have to bug out on foot and back-pack.