Dieter is pretty old now and his english was never great! See if you can speak to his son Rainer, he's a great guy. I know he has some awesome stuff stashed away but he is either keeping it or asking crazy money, still, he's had that stuff since back then so it's down to him. I swapped my black zeronine for Rainers chrome one back in 1986 at the Lowestoft Anglo American race.