Not really Yorkshire, but pretty close. Look up Hide N Seat Interiors on Facebook. Based in Peterlee, he did my Celica interior and I'm well chuffed with it (www.gazchap.com has pics)
Try to find out what outfit audi in your area are using. Then contact them yourself. They should already be familiar with the car. Have the patterns and do it for a reasonable price and not break anything along the way.