Don't you like the pool at the AKL? It has zero entry and a slide - looks nice to me. DVC members staying in the lodge will certainly have access to the pool already there.
Anyway, if it were me, I'd book my home resort and then see what was available at 7 months if I wanted to switch. If you call right at 7 months, you should be able to get PV -Pool/Garden at the BWV, OKW, or SSR. Might even be able to get BCV orn VWL if you are willing to use the waitlist.
Good luck!