Really wanted to build one too. Even a DIY with a 3 phase motor and VFD was gonna come out to $1,000+. I want to get into knife making. One day I'll build one.

SayberOSG is set of plans that are bolt together. Lots of info online. The plans are free can be sent to a waterjet or cnc spot. A guy on a belt grinder facebook page sells pre-cut pieces for around $330 shipped. Just drill and tap some holes and bolt together. Again, motor, vfd, and wheels still need to be purchased BUT it's a 2x72 that can go vertical and horizontal.