I have a friend who did this. He used to run a hair salon, and when it failed, he started his career as a blacksmith. I've been kind of his benefactor for his early efforts, but he is improving his skills rapidly. Every iteration seems to have lots of skill development. His latest creation for me is an historically-accurate, late model gladius. It's easily one of my favorite possessions! And here I should say... He is on track to be making a lot of money. He doesn't only make swords, though. He makes all kinds of stuff. Swords are just his favorite thing to make.