Nice find Rory. So is that two sets of 1" clamp on S&M forks and stem you have now?
I used a set of those forks (aka "stupid forks") on a dirtbike for a while. I used the Menstrual stem (aka challenger stem) cos I liked to put my shafted redneck up a little and the Menstrual stem was a bit higher than the redneck when you ran it upside down (it was loads higher if you ran it the right way up. Ive got a pic somewhere, I'll try to find it.
They are the same forks that are being sold on Ebay at the moment. I think the seller has got a few pairs of them. Shame they dont have a few of the 1" clamp on stems, but you can always make a shim and use a 1 1/8 redneck.