Hello mate. Rear disc kits are really pricey! about 400 quid! But the only non stock parts are the hubs and the caliper mounts, apparently! You can use the hubs off a type 3 (variant) not sure which discs, probably mk 2 golf or camper front discs, mk2 golf rear calipers( which have a handbrake) and cut the caliper mounts from some hefty plate! I spoke to Mike at Machine 7 (08707 668456) who was really helpful and didnt just try to flog me something. Which was nice! He does all the kits but he cant break them an sell the bits. The kit does have some nice billet caliper mounts and all the cables are the right length! Hope that helps.