I would book through WDW directly with a reservation you can cancel.
At the same time, I'd be looking at resale contracts. Very few are being ROFR'd. You can look at the disboard ROFR thread to at least see what people are paying for contracts. Prices are good right now and don't feel bad about negotiating hard. If you get a rejection, move on. If you can buy a fully loaded contract initially, you can manage with less points and use your contract every other year with banking and borrowing. It will give you security so you control your reservations without worry.
Just a thought from a 30 year
DVC veteran! Good luck!