That time is pretty popular at BCV (and BWV for that matter) because the Food & Wine Fest will be going on at Epcot. The ability to just walk in to the festival makes those 2 resorts, in particular, much sought after. You are already inside the 7 month window for those dates so it may be quite full. It's not impossible, however.
You can't get on a waitlist yourself. What you need to do is go to the Rent/Trade Board and ask for a member who would check for availability and then rent to you or be willing to get on a waitlist for you and rent the points if the waitlist comes through.
If it were me, I would make a reservation elsewhere just in case. I would do it through the same member, if possible, as most members would not be too happy making you a backup reservation that might be cancelled if your waitlist comes through. They stand to be in a hassle or, at worst, lose points. If it's the same member, they can just switch the points to the new reservation.