I would think you need less money than you currently have to live in the wilderness.
As far as the rest; you have control over that now, in what you watch, where you go, who you associate with.
As for the first, then sadly no. Saws, building materials, weapons, ammon, foodstuffs and more all cost more. Even in the heyday of the frontier days they all had to trade for essential foodstuffs and material. Also in this day and age there is no such thing as a true wilderness: I would have to BUY a plot of land.
As for the second then the problems is precisely that I can NOT control it. As boundaries and moralities is constantly being forced upon me