E30 Zone

Howdy, a simple question which I'm really struggleing to find the answer. Iv got a rear disc convertion on the go but now just need new discs, pads and handbrake cable. Ref discs and pads I know the touring has larger calipers but does it still use the same pads and discs as the saloon or convertible? (the rear arms are from a touring). Secondly anyone know a good place I can get handbrake cables from And how much I'm looking at? Many thanks.

FYI I did try search and google, not a lot of help.

Calliper piston size is slightly different between saloon and touring, but everything else is the same.
For the handbrake cables, go to the traders' forum and look for Meatballs.

Super, thanks for the help.