Also SM have their own stand alone techmarine hq. Its a master of the forge, he i basically a 2w tech that comes with the servo harness for under 100 pts. Quote from the grayed out tech marine box, "For each HQ choice in your army (not including other techmarines, servitors, command squads or honor guard) you may include a techmarine. these selections do not use up a Force orginisation slot."