All the files for the Universal Chassis are open source and downloadable from my website.
www.team221.com
We took the major concepts from 254/968 and team 60 and made them production friendly. All components are made from stock sizes, they have no complex machining and every part is bolt together.
I made the first production batches in my home shop with a standard Bridgeport. A band saw, belt sander, scroll saw and drill press would suffice.