Ok a mate i know has his old cav big brake upgrade for sale. he had it on his cav but took it off when he sold the car.
Now i assume it will fit (vauxhall 4stud) but do you reckon its ok? ill need new discs and probally pads but the rest is there here are some pics:

Hes selling all the parts shown for £50. although one disc is cracked so will need replaceing at about £160 ish for the pair. is it worth it?? plese help!!!