"Undisputed 2001" is right now available for free download on Chuck D's online record company Slamjamz.com. It's put under his solo name "Mistachuck". This is after what I've heard the same version that's on Rave SE.
After each song there's a little note and this one says:
"Within a day after vibin', lunch and freestylin with the NPG in Minneapolis at the famed Paisley Park studio B, the master himself Prince not only produced the track but guided Mistachuck on the rap. This actually is a remix from the Rave unto the Joy Fantastic."

Check out Slamjamz.com....it's really something.