Notes from author
For those that prefer to go without a shield, and love to go for both parries and backstabs. For those that wish to have a more versatile primary weapon, the Estoc is also a fine choice.
For the Black Bow, Feather and Poison Arrows are the main go-to, with Feather playing into it's excellent range, and poison for taking care of enemies you would rather have die with minimal effort, should they be susceptible to poison. Fire and Moonlight Arrows would also round out its versatility at +15.
The idea behind the Divine +10 Parrying Dagger is for a quick, magical off-hand weapon, one that can finish off the Skeletons of the Catacombs, as well as play into the Faith of the build itself.
Besides the Dark Wood Grain Ring, the Hornet, Wolfs, and Hawk Rings are very helpful, depending on what kind of combat you're in.
For the items, the various Pine Resins can always be switched out, and the Blooming Purple Moss Clump should always be kept on the item bar should you be going through Blighttown or the Painted World.
Other armors are certainly an option, particularly for those that do not have the DLC.
Overall, this build is meant to be light, fast, and quick to hit, relying on both agilty and defensive miracles, such as Great Heal and Great Magic Barrier, as well as buffs, like Darkmoon Blade and the various pine resins. The 15 INT is purely so one can use Fall Control, and Cast Light, both of which are very useful, and require very little in the way of INT.
NOTE: I haven't actually finished playing this build myself yet. In actuality, this is essentially the end result I'm planning on, and I wanted to have it posted somewhere in the hopes of knowing where I'm headed with this character.