It does appear the subscription moves with the post.
7 Minute Challenge not yet attempted. I've been rebuilding courses and other aspects of the recovery, and haven't had assistance on the server side of late. I do thank you for the follow up, and wonder what sort of file repository you had in mind. Simple enough sounding -- plenty of TB of storage space, and the files are pretty much on the same machine anyway (albeit on a different VM). You thinking FTP "link" instead of putting them in Moodle?