if you've got a tandem master cylinder you should be right, if not go the tandem off the 120y your stripping for bits. the 120 disks will be only slightly better than the stocko drums after a few heavy goes on them....if you can wait a bit the stanza upgrade appears to be the best for $$$ i'm in the middle of it at the moment so i can give you a real idea in a week or so ??

jonny major in grovedale has a bunch of 120y's out in the back paddock that are destined for the crusher

also where abouts in geelong are you?? ... i live down torquay way