I just looked. There are preferred and premium sites available November 11 - 17
If you book November 9 - 23, Partial, Full, and Premium come up.
The trick is to look for more dates than you need. A minium of 14 nights. Start your stay on a Tues or Wed. You should be able to get a site.
Once you are booked and your deposit paid, then call and cancel the extra days.