Cranberry Lake Campground is about 40miles away, there is also the tent space thread if people are having trouble finding places to sleep. There is also quite a bit of state land around Harrisville area that you could camp at without much chance of being hassled. Head over to Bonaparte's Cave State Forest, real close to Hville, check the map.
Wish I could be racing with the DRZ but hopefully next year. Good luck everybody, ride fast!! :)