To be fair there are only 3 books you need if you want rules for all the troll models.
The Trollbloods faction book, and the two expansions (Gargantuans and Domination). They also have a lot of fluff.
If you are tight on money the warroom app is cheaper.
Battlecollege usually has a pretty decent rundown of stats Though sometimes you might have to compare them to other, more well known models.
And I've been known to just look at the books at the game store as well or borrow a buddies book.
EDIT: Here is a pretty good write up on him as well
http://privateerpressforums.com/showthread.php?182918-Da-Bomber-Your-Tactical-Guide-to-one-of-the-Best-Ranged-Units-in-the-Game