Final Diagnosis:
@CNK suggests uploading 2.x through x.x to archive.org. This is a painfully slow process (though if arrangements were made, a physical drive could probably be mailed to them and possibly someday that content would become available through their system) but thus far testing their history with repo.tinycore and distro.ibiblio.org/tinycore none of the actual binary content (.tcz files, for example) looks to have ever been crawled and saved. This IS, however, the closest to a drop-in replacement where /opt/tcemirror could possibly be updated to utilize if necessary. Additionally, there's really no telling whether or not archive.org is going to stand the test of time.
GitHub - this direction is much, much faster than Archive.org, SEEMS so far to be unlimited in space and speed, but isn't overly drop-in friendly "as is"
Google Drive(s) - again, much faster than Archive, but not drop-in friendly at all.
Free web hosting services - so far I have not found a service with the amount of space and speed needed to make it worthwhile
PLAN "F" - THE OTHER: Don't hold your breath yet as I am not in a position yet to make promises, BUT I have one effort in mind that might make a lot of this (including NEW releases) so much more lean and efficient while utilizing third party systems such as GitHub by merely making a few CORE logic changes with the tce* files. This will take a bit to experiment with.