Recipe critique, small batch RIS

[tdjb]

So first off,my plan is to brew this as a small test batch via the BIAB method. I basically took the Double-W recipe from here, scaled it down and tweaked it a tad.

I'd like to stop by the LHBS this weekend and get all the stuff so I'd appreciate any comments/suggestions (outside of increase the batch size ).

Recipe Specifications
--------------------------
Batch Size: 0.50 gal      
Boil Size: 2.25 gal
Estimated OG: 1.122 SG
Estimated Color: 71.9 SRM
Estimated IBU: 104.6 IBU
Brewhouse Efficiency: 65.00 %
Boil Time: 60 Minutes

Ingredients:
------------
Amount        Item                                      Type         % or IBU      
2 lbs 2.5 oz  Pale Malt, Maris Otter (3.0 SRM)          Grain        83.33 %       
2.6 oz        Black Barley (Stout) (500.0 SRM)          Grain        6.25 %        
1.7 oz        Special B Malt (180.0 SRM)                Grain        4.17 %        
0.9 oz        Caramunich Malt (56.0 SRM)                Grain        2.08 %        
0.9 oz        Chocolate Malt (350.0 SRM)                Grain        2.08 %        
0.9 oz        Chocolate Rye Malt (250.0 SRM)            Grain        2.08 %        
0.12 oz       Warrior [15.00 %]  (60 min)               Hops         74.1 IBU      
0.12 oz       Williamette [5.50 %]  (30 min)            Hops         20.9 IBU      
0.11 oz       Williamette [5.50 %]  (11 min)            Hops         9.6 IBU       
0 Pkgs        SafAle US-05 (Fermentis #US-05)           Yeast-Ale