Sorry folks, I’ve been operating under false assumptions. Not that it makes that much of a difference from your end, but in case anyone else has been making the same mistake I wanted to pass this along.
When checking out the Prop Store, I’ve been going exclusively to the New Additions page under Serenity to see what’s been added. My mistake was in thinking the listings on that page were all they had, but according to Katy at the store “we only have the 60 most recent items on the new additions page.” There are, in fact, 163 props from Serenity still available under All Products, including a lot I thought were sold already. So have at it!