Hi John -
[Oops - I corrected the math.]
The benefits of 3 and 4 Star Elite are minimal, so unless you are going to go all the way to 5 Star Elite, it is not worth the the cost involved. (Probably a minimum of $60K+ in your case.)
Starting where you are, it will require multiple (expensive) purchases from the developer, to reach 5 Star Elite, because you are still 390,000 Staroptions short. This is the equivalent of 2.6 2 bdm. lock-offs worth 148,100 Staroptions each.
5 Star Elite = Interval ownership equivalent to at least 649,000 StarOptions
Since we don't know what is going to happen with requalifying, Elite Status, or SPG Platinum, under the 2 new management companies, I think I would wait and see what happens before I proceeded with this strategy.