I'm going to build a power draw bar for my mill based on a butterfly impact, and came across some forums posta about the "SIMPLEST AND CHEAPEST DESIGN EVER" from 2006, which looks great to me. It moves the controls to a remote switch and adds an extra air cylinder to lift and lower the wrench. I found the website where plans were once available here, but the link to buy plans no longer works and I can't find any contact information. Does anyone know where I can get a set of the plans or have contact info for the designer so I can reach out to them?