Being able to build a (basic) frame a day would demonstrate you have some experience and probably know what you are doing. As was said it would free up time to run a business. Keeping inventory, customer interaction, marketing, etc...

Any business or job should be lucrative enough to keep you and your family comfortable. For a small family in Toronto, that would mean at least a 60k income. I doesn't seems like the OP has a "menial dead-end" job he's trying to escape from?

You'd have to ask him. For one thing Mr. Barry ran a bike shop for most of his 30 year career.