Perth is your best lead, however DH-H seems to be rather busy at the moment. The best person to talk to would be Sandy Torrance CFI of the Scottish Aeroclub/Tayside Aviation at Perth. He has quite some aeros experience, and is waiting to get the green light on DH-H's Pitts, I believe for instruction.
There are certainly are number of (it seems) fairly under used proper aeros machines at Perth, Sandy may well be able to put you in touch with the owners or groups or advise on training.