Thanks for the date change!
I'll be there. A quick web search shows only 2 camping areas open in November. The state park and
Hunter's State-Line Campground(I know nothing about this place)
850 NH Route 12 South
Fitzwilliam, NH 03447
Ph: 603-585-7726
Info on the State campground..............
The quiet camping area at the base of Mount Monadnock has 28 campsites. Ten of the sites are by reservation only; 7 are for youth group reservations; and 11 are for first-come/first-served campers. Reserved camping with full staffing and facilities will be available from May 28 to October 11, 2004. Reservations for campsites may be made by calling the Reservation Office, Monday through Friday, from January through the end of the reservation period. Campers interested in possible first-come/first-served camping prior to the opening of the reservation period should call the park directly in late May for further information.
The campground is open year-round, however, services are limited after October 11. Pit toilets are open during the winter, but water and firewood are not always available, and the campground road is not plowed.
state campground map (map takes a while to load)
Hope this helps. I can also check with Harlow's and see if the will be able to accomodate a large group if that's were everyone wants to go.(I can walk home from there!)