All too often, I see bands who are waiting for one person to come along and make thing happen. While everybody who helps your career is important, it is rare for one person to make all the difference. Try that approach if you want to, but don't be surprised to find yourself falling behind your competition. Don't forget that small steps are what makes any career. It is very possible that you can make this kind of money.
Bands do it all the time.
Assuming you're not playing live, you would need to sell about 20,000 CDs a year to general the kind of money Mikel has. That's under 400 discs a week. Not easy, but not impossible. An upsell to somebody who is already a customer is much easier than finding a new customer. The income that most musicians see if more like bunch of little streams rather than one huge river.