I actually just filled out my trust tonight, I had some help from someone that has done on before...but really it is not that difficult. I am horrible at filling out paperwork, it's my curse. After I had it explained to me how to fill it out I went thru and double checked everything, if you use quicken willmaker it basically takes you thru it step by step. The main thing that was explained to me is just dont make it to complicated. Have a dedicated trust for your NFA stuff, dont put cars and sorts of other things on it. I'll be mailing mine off this week with a supressor and an SBR on it and I'm confident there will be no problems.
Quicken will maker is about $35-$45 bucks, I think walmarts have them, if not you can easily find them on amazon.