It's here, and fixed after a small backend issue. User error ftw. After purchasing the DLC, you have to navigate to The Bounty V2 in your library, then Manage-Browse local files. Everything is in the BountySupporterPackV2 folder. If you want to, you can even manually add the separate playable games to your Steam library.
Thanks again!
-Dave
The paid DLC pack features content such as archive documents, a retrospective, and additional playable versions; an alpha build, a 2018 Deluxe Edition demo, and an additional special course.
Please note, that this DLC will not effect your copy of The Bounty V2 in any way, and is a completely optional way to show support. It will consist of a .zip file that contains everything for you to peruse in whatever manner you wish.