Add another 
They Are Coming and 
Goblin Swarms.
Remove the 3 copies of 
Ulaire Nertea, Messenger of Dol Guldur and replace with two copies of Ulaire Enquea. I would dump the two 
Goblin Flankers and four Moria Scouts and replace with four Goblin Sneaks. These guys are great for getting that perfect site eight/site nine swarm with such a small draw deck.
Personally, I would remove the four Goblin Backstabbers and the four Goblin Scrabblers. Then add three Guard Commanders.
Now you are down to 34 cards with a guaranteed kick-#$&*@! last Shadow phase.
As for the good guys, you have to use 
Gimli, Dwarf of Erebor with this deck. If you have that Cave Troll a little early, why not put him beneath your draw deck? Coupled with 
Goblin Sneak, this guy will run the train. I have always found dwarves to be about endurance until card stacking came about, so:
Drop one 
Gimli's HelmDrop one 
Dwarf GuardDrop three Dwarven Armors
Drop three Hand Axes
Drop four 
Flurry of BlowsDrop one 
Till Durin Wakes AgainDrop two 
Power According to His StatureAdd one 
Greatest Kingdom of My People or Bilbo, Well Spoken Gentle-Hobbit
Add two 
Gimli's Battle AxeAdd one 
Dwarven AxeAdd one 
Grimir, Dwarven Elder Add two Dwarven Hearts
Add two Bounders
Add one 
There and Back AgainUse 
Frodo, Old Bilbo's Heir. 
Listen, when it comes to swarm, you have two copies of 
Sting and so you'll do alright there. Your real concern should be Direct Wounding. 
Hate destroys this deck.
But good luck!
-wtk