Just ths whole thing:
Google Afbeeldingen resultaat voor http://www.angrypandaparts.com/catalog/!B3(-VkQ!Wk~%24(KGrHqEOKjUEyWuqB2uoBMl9mJN3sQ~~_1_2235_1.JPG
Including a proportioning valve like dan just said.
If your car is a facelift ek3 then you don't need to replace the brake cilinder...