OK, thanks for that....I have a rather nice alluminium 4 pot caliper here that I have borrowed from a new company called "Comp brake". It's very similar to the one that is badged up "Bremsport" from another company. I am still waiting for a price for a pair of these to see if I can put a kit together with the bigest disc that will go in a standard 15" wheel. I think there might be a suitable sized disc of the Mondeo. I will need to make brackets for the caliper though. I seem to remember a mate with an Astra fitting a pair of Alcon calipers off a "Puma Racing" on 285 discs that fitted inside a 15" revolution wheel OK.
Tony, get saving up!
Martin