Dont want to be accused of throwing cold water on this, however, whilst it is feasible that a PPL holder could display the beast, will the CAA require the pilot to be in current flying practice and the holder of an ATPL before they issue a display licence?
How many ex Vulcan pilots would care to display the aircraft, given that they probably haven't flown it for 15 -20 years; and we aren't getting any younger, any of us.