Got a feeling that Pitts ended up at Farnborough along with a Zlin. I can remember a signwriter painting Neils name on a Pitts in Q Shed, where the Aero Club and other private aircraft were kept.
No-one has yet mentioned Peter's Pterodactyl which hung from the roof of the Preston Candover hangar. It was a film prop for (I think) 'The Land that Time Forgot'.