If you don't want to wait for 7 months and aren't having any luck finding enough SSR points to transfer into your account (those GV eat up points fast), you might also consider looking for a SSR owner to "trade reservations" with you.
I've read lots of posts made by SSR owners that want to stay at one of the other DVC resorts for some variety. Probably wouldn't be hard to find someone who would be interested in trading with you.