Welcome to the friendliest fine forums I've found so far (say that three times fast)!
In addition to everything else, check with the private campgrounds down there. Most of 'em won't have an issue with you hanging, as long as you're willing to show them what it entails. At least, that's been my experience. Only problem with that is the lack of trails at most of the campgrounds; but, if you car/bike/boat camp, that's less of an issue.
Hope to see you at the second annual hang!