As the previous poster said, the week between Vet's weekend and Thanksgiving is quiet, you should find 7 nights, 10 might be tough because you are either going to start the trip or end it during a stretch when many members book 10-11 months out. Last year I got 6 nights in a 2 BR starting the Sunday that ended F&W. I booked it 6.5 months out.
If you can swing it points-wise I'd consider a 2 BR b/c if you can get 7+ days and have to waitlist a few I would think you'd have an easier time getting 1 room to come through than 2.
Or consider a split stay. Last year we did 4 days at AKV (plenty of availability at 6.5 months) and then the 6 nights at BCV. It was a great trip, and ending it at BCV was the topper.