Mechanic Mastery Books. Hey, I know there are some lists, but only very few have any Mechanic mastery books at all, and the ones that they do have, are skills you don't max untill much later. I'm looking for more specifically: Extreme Metal Armor 20 & 30, and War Machine - Missile Tank 20 & 30. Has anyone found any of these? Or should I just save up my SP while I'm waiting to find them? I'm currently level 123, and leveling several times daily. Thanks for any help.