Because you said that you may want to post bounties later too, here are a few comments:

First of all it would be good to see some progress report occasionally, to know whether there is something else to be done, what is still missing, etc. Pretty much as soon as it turned out that after having the dependencies installed with brew, the app builds trivially, it wasn't clear what else was missing. (codesigning, was it part of that? though that's also only two more lines)

You said in the opening comment that "I'd also like to see this thread used for collaboration". This is difficult without feedback on the process. It seemed like you're not considering anyone else than higuys, but it wasn't clear. Especially after you moved the discussion away from the forum to IRC, pretty much everyone else was closed out.

You also said that the goal is to have a "recipe", but at the end you say the exit criteria was "He gave me a .zip that I downloaded in a fresh install of an OSX virtual machine, double-clicked, and Armory was running.". In that case you should have closed the bounty earlier, or at least indicate that the party was over, because that stage had been reached.