Check with Chuck Sharin (CamarosRus). Jack Seymour (Jacsey 70Z) has a survivor lo mile '70 Z (he has chronicled his beauty with a ton of photos), and go to Charlie Lillards new web site
1970 Z28 , he's got some great photo chronology of his 1100 mile survivor beauty. I think this car will be at the MCACN show too. Also, I'll bet Mike Greenwalt (AZcamaro) has looked into this too as he is finishing up his '71 Z Camaro.