Looking to stay a bit closer to the start/finish? There is a hotel in Spring Valley that had 40 rooms available for Friday the 14th. When I spoke with the woman at the desk there, she suggested everyone call for reservations as opposed to making them online. There is also camping available at Forestville State Park, which is just down the road.
If you already have a room in Rochester or are camping here at the house you'll be fine. Spring Valley is really easy to find as it's just down Hwy 63 and only a 25 minute drive from Rochester.