As stated the fork was mine but the CNC milling was done by someone else; my involvement was helping get the dimensions (location of the holes) right.
The adapter is as good as it gets - it holds a calliper close to the fork for use with 160 mm disc, it even has a slot milled for added lightness :mrgreen:
I received mine gratis - as payment for helping with the design and build but I think the few that were made were being sold for a reasonable price - £ 10 - 15 (can't remember).
It is great real pitty that Marzocchi backed the betamax equivalent of fork mounts but back in 1998 disc brakes were just appearing, who was to know IS was going to be it.