They're probably talking about Hans Pedersen who did work in collaboration with link automotive (aka mini link) (both in thornton crescent mitcham) - in particular Brian Pope - who have made supercharger kits (the lysholm type) for early A series minis. I haven't had any contact with link for probably close to 12-15 years now (about the last time I had a road rego'd mini!) so no idea if the kits are still available but I would suspect so.