Haven't read the entire thread, but all I can say is this (having done it): If you don't mind working on a nano level for 1-2 years (and I'm talking about ~3bbl or less) for a year or two for free, and not make any money, and fund the gig out of your own pocket, even lose money, and you do this to prove a concept to attract loans or investors to grow to the next stage (and don't mind working long hard hours at that next stage for a fraction of what your 9-5 job paid), then go for it. Otherwise, don't try it. Find some investors and open a real brewery (and make damn sure you know how to run one or find someone who does!)