Want to Buy Lens board for Durst L1200, 42mm?

Hi, I need to put a 150mm lens on my Durst L1200, the only boards that I have are all L39 size, the 150's seem to be like M42, but a different thread pitch as they wont quite go on a Pentax. Does someone have one, or could suggest where to get one? I'm in Australia.
Tony

Hi Tony, I have the lens board. M42x0.75mm. Postage will be from Vancouver, Canada. You can contact me thru PM.
Goran