I just received the cnc conversion kit from cncconversionkit I bought and paid for on the 5th. The ad said the latest I would receive the item was the 15th. I should have been worried. I didn't receive the ball screws yet but I opened the other package and the quality really stinks. Bearing holes are not straight and some of the bolt holes are oversized. I can imagine what the ball screws are going to look like.
Be careful. This guy was always reassuring and promised anything that worked at the time.