Here is a hint. Look at the Relisten Phish channel. They list the sources of each AUD they locate.
for truly private sharing you can use Wetransfer or dropbox any of those.
Posting the torrent to bt.etree is the best bet we have for it to be seeded and sitting for someone to leech off of for more than s week. Of course, requires knowledge of how to prepare torrents, which I Suck at, and typically ask others to do for me. (h/t kindms)