Therefore, its known narrative elements are not a part of the Doctor Who universe as we, on this Wiki, choose to define it. It may have been the basis for a similar story in another medium, however — and that story may indeed be valid.
Bring me the Head of Sabalom Glitz was an audio story pitched by Zoltán Déry to BBV Productions as an entry in the Audio Adventures in Time & Space series following the relative success of The Green Man. It was rejected due to Bill Baggs wanting to focus on The Faction Paradox Protocols.
The premise would have seen Sabalom Glitz, as seen in the Sixth and Seventh Doctors' televised eras, becoming "the most wanted man in the galaxy", leading to humourous hijinks. (REF: Downtime – The Lost Years of Doctor Who)