I am in the process of trying to find a new CNC Vertical Lathe with live tooling. I need a 25" to 30" max turn diameter and be able to tap a 3/4-10 hole in tool steel. Which of these machines might be my best bet: Daewoo puma 550m, Amera Seiki VT600, or the You Ji YV600. The Mazak QTN 450M horizontal lathe is also in the running, but the max turn is 22.8". The prices are all in the same area. Thanks for any help.