An entire state, allegedly like shit as no concrete estimate exists, would cost around $80 billion.
https://www.quora.com/How-much-would-it-cost-to-buy-the-whole-United-States-of-America

That leaves a paltry $10 billion to for living expenses.

Dude was right in that I'd be paranoid as shit. You'd have to move like you were on the run. Once people found out they'd try to get you.

I'd take $20 billion and buy a stake in every small businesses in America. A stake could be 5 percent. I want a bag every month from the major small businesses in America. Got a lemonade stand? I want a bag from that. You out here flipping DVDs? I want a bag from that too. You an app developer with 10 employees? Come here and break me off a bag too.