Thanks fellas,
I will have a dig around at work to see if anything comes up there. Alternatively, I am going to try and contact the 'local' (30kms away from my house) steel merchant to see if he has got left threaded rods and nuts. What diameter threads should be used? 12mm? 10mm? How strong does this Kafer Brace need to be? (apart from the obvious answer that it needs to 'stabilise' the rear
)