also, make sure you check out not only what the cost is to get your licence, but also what the annual cost is to maintain the licence.

then figure out what you can charge, what time would be involved in doing that, how much you'll spend (advertising, travel, lodging any paperwork, renting anything you may need for ceremonies, getting your accounts done if you don't do them yourself, tax, etc) and decide whether it's worth it.

I'd be interested in what you decide! I know someone who started looking into this ages ago, but I'm not sure whether they pursued it in the end ...