Hi Brian,
Believe it or not they are probably just as cheap from a beemer dealer than bearing services. The main one is the same as the 1150. Worth chatting with Bob Cook who is Specialist Services at Fencehouses. He is a dab hand at rebuilding them. They take a bit of finesse to get them apart without ferking them. I am still on for the Picos in October, just cant find your phone number.