There is also a ZB25 manual available at a price much more commensurate with its quality on eBay. The seller is fazerblazer and full seller contact details can be seen without logging in – Premier Machine Tools in Nottingham.
As for the cams, they are fairly easy to duplicate if you can find someone who has one to copy. Just put on a rotary table and map the rise every couple of degrees of rotation.
Find someone with a CNC machine with an A-axis and a touch probe and the mapping could be done almost automatically.