This is given out free in the tutorial zone of Glooming Deep Mines, and also sold by the melee tome dealer in the same zone, BUT he does not seem to sell the components that i have found so far. Although, admittedly, i usually skip this tutorial zone; but i just made a new character and decided to try -- turns out you get a ton of free stuff here, including some decent armor. So, now i say DO IT! when it comes to the tutorial zone, as you can get to level ten and get items and armor specific to your class free from all the tutorial NPCs.