The original audio has existed for YEARS
From The Lost Media Wiki
The page with which this comment is associated has been deleted.
Nine years ago, Breadcrustcouncil uploaded his own copy of the demo onto Youtube, it contained the original audio as well as some extra footage: https://www.youtube.com/watch?v=hMucplM3CUk
So clearly, y'all didn't do your research. I don't think they actually lost the original audio either, maybe they didn't want to pay Danny Elfman licensing fees for his music.