You could buy some khukuris and sell them on the side.
Anyway... I've come to the conclusion that knives for money isn't really a grand idea, especially if you're of the historically inspired / artistic inclination. Even Ed, who's got orders lined up, is a Mastersmith & been doing this for a long time needs an outside source of income. I don't have a pension or retirement income, but a lot of my competition does; it affects the market.
It's hard enough to pull yourself up by your bootstraps, which is how one goes from part-time to full-time... but add the current economy to the mix and you're looking at a lot of hard work. I've certainly gone hungry & scrambled to keep the lights on.
Ed is right, though. If it's a dream you'll find a way. I rather suspect each of us who pursues this particular dream has to figure it out on their own...