Well i got my brakes sorted.
I got a full set of genuine triumph micro fiche's from a chap on ebay. Low and behold listed were the parts i needed. Although not shown in the exploded parts list, they are listed. i went to my local dealer, part numbers in hand and now have the parts to fit.
My dealer is not happy, as before i gave them the part numbers, i again asked for the parts and was shown a fiche with them not listed on it. Which is correct. If i look at the fiche for front calipers they are listed, however if i look at the fiche for rear caliper they are not. it was therear caliper fiche my dealer showed me and thus his justification for having to buy a whole caliper assembley. When i gave him the part number he was not happy, and when i showed him the photocopy of the fiche he was less happy, exclaiming that it was triumph property and not available for general public and where did i get it etc etc etc. Needles to say from now on i will be ordering parts by number. now i dont kow if im allowed to advertise on here but i think it is well worth while. The address where i got the fiches is:
http://www.fiche-man.com
It all comes on a cd, which has all the fiches on it in adobe acrobat reader and also it has a complete copy of the haines service manual. It also came to approx £11 GBP including postage. I think it is well worth it. with all the exploded diagrams, it is a god send.
Thanks to all the help you have all given me and good luck with everything triumphy
Daz