seals
With a bit of digging around I found that these are available individually from Kawasaki (part no. 43049- 1004) and Honda (part no. 45103-MEL-003) and are about £2.25 each.
I am still waiting for a delivery from Cradley Kawasaki of these seals.
The update is, as advised by I live a short distance from Cradley Kawasak[, I had the part number as shown above, I was very impressed with the level of knowledge of the parts chappie, quoted the number & he immediately recognised the seals, in stock. Sold separately, no crap as given by BMW main stealer, oh you have to buy new calipers, sir just, £267 plus vat each side.
total cost of seals £10.85. Job done. Yes its a pain getting the Torx bolts out, but sweat & perseverance its do-able.
These were the ones on mine and were in stock at Cradley Kawasaki Tel 01384 633 455.