Ths "problem" that I see is that unless you have enough points to cover both reservations without borrowing, you will have a reservation to cancel...that requires getting a cancellation number, and requries time. Do you expect SSR in general to have all 2 bedrooms already booked by February 5th for Thanksgiving? I think not, you are still in the owners priority period, of course they could be, but I wouldn't waste my time getting an ordinary 2 bedroom, then cancel it and book a treehouse. I would call to get the treehouse right away.
JMO, of course.
Bobbi
Bobbi