Each room sleeps 6--2 queen beds and a bunkbed. There may be smaller options available. For years we went with BIL/SIL and got adjoining rooms. This year, we'll have 2 rooms, because with our niece, it makes 7. Plus, DD/DNiece are coming in a few days later, and they really appreciate having their own room. We'll still see plenty of them.
We got an early-booking discount, but I think for 5 people for a week, then 2 people for 4 nights in a separate room, we're paying, ~$7500.
Thank you for the info on pricing and accomodations! I'm going to have to add this to our list of potential vacation spots