I still say Road America would be best. They have camping on site. And theres a rather "rowdy" campground across the street known as the Zoo.
Some of the incedents at the Zoo over past years....
Dead deer found sitting on mens toilet....
nude quad runner races...
topless contest for girls...
burnout contests...
tying a passed out drunt to fence with pants down contest...
wheelie contests on the main road with the sheriff dept scoring...
mud volleyball (if rains)
groping girls while playing mud volley ball...
greased pig catch...
Harley up a tree....