Thanks for the links Mark. I have had a look but can not find anything suitable. I like the look of the ones on ebay simply because the inner diameter, 20.55mm, of the bottom section matches that of my existing top kits and so will not need any cutting back. Most others I have seen are only 18mm to 19.5, to small, or are 23mm plus and I don't trust myself to cut them back correctly.
Many thanks and kind regards
Craig
