The disks are 300mm wilwood ones, its something Im putting together from leftovers, the disks came free with a set of calipers we bought for our clio mk1 trackday car and the calipers are ones Rob has had lieing around for ages so I swapped them with him for a couple of hundred quids worth of calibra turbo bits I had spare, so the only actual cash it owes me so far is 30 quid to get the disks bored out to clear the spigots on the car.
It does go quite well but its a lot heavier than you would think a nova would be, its around the 1100kg mark, so about the same weight as a stripped out 3 door would be.