Not sure if you got sorted with this, my longterm garage who has done all my servicing on my other vehicles recommended Autoservice in Stanley, They are a very helpful crew with a vast knowledge in landrover , providing service , repair and refurbishment, I've used them recently for parts and if they don't have it in stock, they get it in for you, worth an enquiry at the least .
Hello..if you’re able to travel further south I can highly recommend Chester Garage in Chester Street Bishop Auckland..small family run garage and the guys there are Landrover enthusiasts with great knowledge and experience. I’ve been taking our cars there for thirty years and they have always been excellent. No connection with the business other than as a very satisfied customer..Cheers Steve