How exciting Liz (I can't wait to hear more details about your bakery)! Have you ever thought of using an induction cook top? I find them to be amazing!! They don't take much space and you can easily move them around like a Cuisinart.They boil water in seconds and I can make a curd or custard in half (or less) time than over a stove. Plus in my area they don't require a vent hood because there is not flame....no chance for a fire.
I've used it for deep frying and making toffee and it really works well and quickly.