This is so awesome for you! You have must have unlimited energy. It appears you just may have found a way to have it all. :-) As far as spaces, Scooby has great advise. When I built my space out in Rhode Island, I had 3,000 square foot to work with. I changed the parlor room cosmetically after a few years, making it more formal with a Victorian flair. Aside from that, the only regret is not taking into account insulating for sound. But, it sounds as if that may not be an issue for you. Have fun.
