The inventory of rooms available for members to reserve with points is entirely separate from the inventory of rooms available to the general public to book for cash via CRO/WDWTC. So you cannot tell anything about availability of rooms for members by checking Disney's reservation website.
FWIW, I think you are going to have a problem renting the December weeks - VWL is very popular during the time between Thanskgiving and New Year's Day. IIRC, there are already waitlist for many of the December days for all unit sizes.
November 4 -11 may also be a problem - that week is a very popular time for New Jersey members to visit WDW (due to a 2 day state wide Teachers' conference), and there are a lot of
DVC members from NJ.
All that said, availability does change frequently. You don't know until you call what may be available.
My advice to you is to find a member and get a reservation asap. If the dates are more important than the resort, consider one of the other DVC resorts. You could probably get into OKW or SSR without much of a problem, but if you wait too much longer, those resorts will be booked as well. Busy times for the DVC resorts are not the same as busy times for the parks.
Best wishes -