There are two different pin sets, depending on whether the brakes are ATE or Bendix. The more common ATE set looks like this:

http://www.pelicanparts.com/catalog/images/INT-Images/61233004.jpg

As for cables and compensator, these are expensive and fidgety to replace. Inspect them before you go shopping, just fix what's broke. Did you get parking brake shoes and hardware as well?