Dave Rigotti Hobby CNC plans

Many years ago I bought a copy of Dave’s plans and started to buy the bits for them. I never got round to building the CNC router. I have now donated all of the parts to my local Men’s Shed. Trouble is I cannot locate my copy of the plans, buried in study somewhere I suspect. Apparently Dave sold the rights to the plans many years ago. Anybody know where I could obtain or buy a copy?