I have to say I wish you the best of luck. One thing to consider is selling your home, all unnecessary stuff, and live in the cake shop to cut down on cost.
I am in the process of developing my own product line and the wife is on board with possibly living in a warehouse so that we have enough room for machines, tools, storage, product, etc once I have created enough income to warrant both of us quiting our jobs to grow the business. It all comes down to the sacrifices one is willing to make to chase your dreams. I decided to chase a dream versus to get a masters degree and instead of working for others the rest of my life. I got spoiled being a tennis instructor with clients all the US to Japan and am use to doing things my way to solve a situation before I moved to Ohio.