You're lucky. I tried to purchase a DRO kit for my mill and the arrogance and attitude at DRO Pros was just oozing when I was mistaken for someone else that had been harassing them (same first name and I write "really" in my emails). It should have been a warning sign when the person helping me wanted to argue that I was wrong about the Y-axis travel distance on my Lagun FT-1. This was in August, had the most bizarre exchange that resulted in me choosing Aikron from Machine Tools. I had no problems, no BS, and paid considerable less - not CA $$$$, going Aikron. The real cost will be in your time drilling holes and mounting to your machine. I realize this might be water under the bridge and maybe I'm an anomaly, but after a few ugly exchanges, it was clear DRO Pros was NOT for me- even though they are a 30 minute drive away.