Here is the Big Brew Day Recipe that will be brewed by Two Brothers to make 
up the wort for everyone's kettles. This should help for you to calculate what 
you might want to make from it:

Recipe will be:     
US Pale Ale Malt 85%            
Mich Weyermann Carahell 11%         
Mich Weyermann Vienna 4%

Estimated SRM: 4.4
Estimated Plato:  15.4
Mash temp:  152F
Target finishing for this mash profile and a 1 hour boil:  
2.8 - 3 Plato