SSR SAPs give great value but will sacrifice some flexibility.
So an evolution of trips like you mention would likely be easier at any of the O14 resorts you could consider SAP+ resorts. So BLT, AKV, possibly Poly, CCV, etc.
With SSR there will be times you cannot get a room at some of these resorts. But owning at one of those resorts will almost never be blocked out of booking at SSR, for the small premium in the difference in the purchase prices. Basically with a SAP+ resort you could choose that resort or SSR easily with possible other options for the others, when at times a SSR contract may only be able to get into SSR easily