The original 1998 version of the Black Rock Electrical Parade can be downloaded here. The original CD artwork is here.
The stems for the 1998 version of the Original section (for remixing purposes) can be downloaded here.
See this post for more information about the stems.
Update 9/09/16: The stems are now also available as individual loops.
Update 9/27/16: Original CD artwork added.
Update 12/11/16: Fixed the links I broke