GC and MF are not run by guys who have a passion for working on/ building custom guitars. Two totally different worlds. You will find out it's VERY hard to find enough hours in the day to be good at both.
Great point. And remember, as a budding business and probably being the only employee to start with, it is going to have very demanding hours. When you start out, even one employee is at least and extra $15,000 you have to pay and you'll have a very minor customer base to support that while still trying to make enough money to live of off. I am not trying to sound negative here by any means. It's great that you have a dream and a passion, I am just trying to warn you of some of the pitfalls of owning your own business. My aunt and uncle have there own business. They work very long hours, 6 days a week, and every holiday except Christmas and July 4. So it will be tough to find time to still build guitars. Starting off, you might be able to set up a work bench that you can build at while waiting for customers. But as you gain more clients and have more repairs, you'll have less time to build.