Yeah, I'd toss in 
Sting as well. In hunters format, you can actually play both hunters and shadows block sites, its very weird, but allowed. I'd run 
The Prancing Pony and 
Aragorn, Thorongil. IMO, you need some way to make sure minions are wounded to trigger Rumil. I'd run Gorn and Gorn's Bow.
So you'd run Gorn, his bow, Legolas, Dinendal, Rumil and 4 Elven Bows. That's base 8 archery man. All I can say is you may want to even go with 
Faramir, Captain of Ithilien and his bow to use Dinendal for Frodo archery. 
 Oh, and GT, Age's End is not a part of Hunters Block. Its a botique product, like, EME DDB and Wraith Collection aren't Hunter's block either.