Was just notified by Entertainment Earth that they are now taking preorders for The Vintage Collection 3.75-Inch Wave 6 figures separately (previous just offered by the case). Also they are taking preorders for The Vintage Collection Princess Leia Organa (Boushh Disguise) as well. Prices are $13.99 each with a estimated arrival date of July 2019.
Below are the direct product links:
If you have any interest in a full case of Wave 6 here is the direct product link. Price is $109.99