I don't think expert would be the word I'd use. But, I wouldn't send my tops off to anyone who hasn't had some sort of training. For example, classes etc. I don't use a longarmer, but if I did they'd have to be experienced.
Now, that being said, if you decide to do this you can start and build your experience but don't ask as much as an experienced longarmer. Tell your clients outright that you're new and your pricing is low to gain experience and build your technique level. I'm sure you'd get some business that way if your area is as you say.