OP, just a tip: you might want to consider renting DVC points instead of booking through Disney. We're staying at BCV (standard studio) in May 2018 and paying almost $300 less per night on rented DVC points than the Disney rack rate for the same villa. Rack rate for our dates is $565/night; we paid $272/night for a confirmed reservation through David's Vacation rentals. Even if I lump in the additional $150 we paid for vacation insurance (DVC reservations are non-refundable if you cancel, so vacation insurance is recommended), it works out to a savings of about $250/night.
I made our request with David's just before the 11-month mark and they didn't have a member with the points we needed (at least, not a member with BC as their home resort who could make reservations at 11 months out) right away, so I asked them to keep my reservation request in their queue until at least after the 7-month mark (when any member with points could reserve there). Fortunately, it only took about a week before a Beach Club member listed the points we needed with David's. This is the second time we've rented from them and it's been a seamless process. (I've heard good things about the DVC Rental Store, which provides the same services, as well. You can also rent directly from a member for even less money, but I prefer the safety net of a BBB-approved "middleman" like David's.)
The main differences between renting directly through Disney and renting DVC points from a member are: (1) you don't get a refund if you cancel a reservation on DVC points (see above); (2) you don't get daily housekeeping if you're staying on DVC points - just trash-and-towel service every 4 days or so - unless you pay extra for it; and (3) if you stay on DVC points, you won't be eligible to apply any special offers Disney may release for your dates (e.g., room discounts), although in many cases (e.g., our upcoming stay, when we're saving over 40% off of rack rate already) Disney's room rate discounts will be significantly less than you'd save with a DVC rental. You can still purchase dining plans, etc. -- you'll just need the member from whom you're renting to make those arrangements for you (which they will, per their contract with David's or DVC Rental Store, etc.).