I can confirm that Digby Taylor (Wellington) raced it 1970-73 but don't recall the colour - I have a vague feeling it was in a darler colour than the works yellow. I believe it was then sold to someone in Christchurch. This was when the regs limited engine-size to 2 litres, so if it raced at all it would have been with a smaller engine of some sort. (The next name on your list, Brian Middlemass, was Dunedin-based)