Well, let's see...
Not a USA-type setup. USA setups demolish too much culture and that annoys me. I'd want a totally unfair and horrible monarchy!
And my island would know not of tedious, useless, mad-made things such as nuclear warheads or cell seperation. We'd be FREE!
But not... nudist free. God, no.
But, actually, I hate the sea and sun and beach. So I'd swim over to a mountinous cold area and make civilisation there.