I don't mean to sound dickish - so please don't take this the wrong way. But if you still haven't learned to brew all grain yet I feel the compulsion to dissuade you from even considering opening a brewery. There is so much to learn to make a good beer on a large scale and even though extract brewing is a feasible approach it is way more expensive to pull off. Give it a few years before you start making any serious plans. There are way too many breweries starting up now that the dream of opening a brewery is in front of actually learning the brewing process, and in todays tight market that is a sure sign of failure.