Awesome idea. I have been thinking about something like this, but 200-300 acres with no room for expansion seems too small for the kind of country I'm thinking of.
My idea was to buy several hundred acres in the middle of America and declare independence (and stop paying taxes)... As long as you're totally peaceful, how can the government initiate force against us? I would have a major online presence so that our sympathizers could protest against the initiation of force by the government.