Questions on base grains

[Cdburkhart]

I am trying to move to all grain, since I now all the equipment I need and I wanted to try to convert an old extract recipe.

The extract recipe is:
8 Lbs DME
1/2 lbs Black Patent Malt
1/2 lbs Roasted Barley
1/2 Lbs Crystal Malt
1/2 Lbs Chocolate Malt
1.5 oz Northern Brewer Hops
1 oz Tettnanger
2 Pots Cold Brew Coffee
3 Tbs Cocoa Powder in Secondary

So reading on base grains, the simple conversion is 1lb grain = .75 LME = .6 DME, so I am looking at roughly 12.8 lbs of grain.

So I guess my question is, what base grain should I use for this? For bases it seems like 2 row and 6 row are primarily used, or am I missing something?

 

[BradleyBrew]

2-row for american styles
pilsen for belgian or german styles
maris otter or other english malts for english styles.

Thats the common practice but its your beer so you can use any grain for any style.

And holy black patent. 1/2 lbs

 

[Cdburkhart]

cool, thanks.

Maybe another dumb question: Should I mash the specialty, or do I steep them like in an extract?

 

[BradleyBrew]

mash everything together