"I'm hoping for an O.G. Of around 1.055-1.065 just to give this a sweeter edge"
It is the fg gravity that will determin that. This does not look like it will be that sweet.
1# of choc sounds like overkill. But who knows give it a go and let us know how it turns out.
Add coffee after fermentation is over.
On tap: World wide lager, Dopelbock, Apfelwein, American Wheat, DFH 90, Dortmunder export, Skeeterpee, Chinook/Citra ipa.
Waiting on a tap. Maibock, Two Hearted, Pliny the elder, Chimay White, Roggenbrier, DFH60
Hiding in dark corner: Lambic, Flanders red, Oud Bruin, DFH 120(in bottles)