The roller CAV is for sale at a Canadian firm. We have a complete car with a Hammer 427 = 500+ HP with a fresh ZF. The car is sinfully fast and beautiful. The owner would consider trades. I have always thought my Pantera was reasonably fast, however, I have driven this car and it is obscene how quick and light on its feet it is. Check this link for more information:
CAV GT w/Hammer engine