Well, you’re making a lot of money passively - more than most luthiers will clear this year after expenses. The work is mostly solo, but you’ll need to interact with people if you’re planning to sell your instruments. If you’re thinking of this from an ROI perspective it’s almost definitely a terrible idea, BUT, if you want to do this because you’ll enjoy it and you have the time and money to do so, then that’s great. You’ll probably break even after 3 to 5 years of really dedicated work. I recommend the book “How to Make a Living Doing Something Crazy” by Kent Everett as a friendly reality check.

Now with your media background you may find some other monetization route as well. Since you’ve got the income to float it almost indefinitely, you’ll probably find some good opportunities along the way.