The Dyna is a wonderful machine but it wont run gcode in its stock configuration. Along with that, the software and dongle wont be included in the sale of your machine (if it is I would be amazed as most Dyna owners have looked extensively prior to modding their mills or lathes). It will run its own built in software if your machine includes the membrane keypad. This software once understood could possibly do the processes you need for those parts. It is a very accurate and capable machine. The 3000H has a 3 hp spindle and will turn a 4" item 7" in length according to the manual. I personally measure 11" of travel in Z on mine. The 1's on ebay at the time of this posting are priced kind of high in comparison to what I have seen in the past but now there is much more public info (cnczone) and that must be driving up the prices!