EESDL!
Can you chaps get one at EGBJ/Staverton or is it only for locally based operators? Last time I did it they were quick and efficient.
FL
Plus Greer Aviation at Prestwick can do it for the emergency services if in a hurry, far better to shut down for the coffee and free sweeties though. Maybe they'd do a RRRF for you if you were up that way again?
But then again - Prestwick landing and handling and navigation fees

plus of course the yellow jacket