I think I found the recipe you're using (from The Brew Hut) and I don't know what to make of the amounts. .91 Graham Crackers? Even aside from .91 of what, why exactly .91?
I suspect the crackers (which go into the boil) will fall apart so much a grain sock won't help much. When I did a pumpernickel porter beer, I mashed the loaf overnight, then used a stick blender to break it up and add to the boil. Something like that might work: soak the crackers in warm/hot water until they are mushy, than blend them into a liquid and add to the boil.
Baker's chocolate, first of all, is not very good chocolate. But aside from that, maybe it's supposed to be 3 ounces? A lot of people recommend cocoa as easier to use. The recipe already has 1/2 pound of chocolate malt, which is a good amount.