Greggan - I have a zip of all the DXFs I used to make a load of the parts for this machine, which has been shared out many times. Happy to send you it if you PM me your email address. It's all 2D stuff, no 3D models or assemblies.
To update this long-lived thread, I'm still using this machine and run it almost every day still. Still running the original setup including the steppers and controller which are now 14 years old. These 30-series machines, with the right mods, are truly excellent.