AIDN was up for sale c, 1971 for 6000 quid.( IIRC Hampshire Club?)
I ( naively) tried to get a consortium together to buy it for a University of London Air Squadron centred team,plus others , and base it at White Waltham in our hangar.We had a core of appropriate ( e,g, ex Harvard) potential instructors .
It seemed so do able.
Silly Boy!