While I have a vested interest in telling people who want a trust that they should have an attorney do it, and therefore my advice is probably suspect...
I don't care if people make their own trusts. I think it can be a risky move, but ultimately, that's a personal decision, and there are probably some non-lawyers that can make their own trust without screwing it up. But DON'T pay a NON-LAWYER money to draft a trust for you. That's just a stupendously bad idea.
First of all, you're not saving much money over paying a lawyer. I bet you can find a lawyer in North Carolina who will draft an NFA trust for about $200.
Second, it's illegal to practice law without a license. So you're paying a criminal to draft a legal document that could mean the difference between blissful NFA ownership and federal prison.
Whoever Coyote Rifleworks is, I very much doubt they have a lawyer on staff drafting trusts for them. Usually lawyer advertising must be clearly marked as such and include the name of the attorney, and their site doesn't.
What that means is that you're going to drop $100 on paying someone who you don't know and has no proof of any qualifications to draft a legal document for you. If you're gonna do that, just buy Quicken Willmaker. Either way you could end up with a screwed-up trust, but Quicken is cheaper and you're not abetting a criminal.
Aaron