I am interested in buying a suppressor for my 10/22 and possibly building an AR/SBR. No interest in full autos. I don't want to set up a trust so is my only other option driving halfway across the state? Is it correct that some county sheriffs will sign-off for you? Does it have to be the sheriff from the county I reside in? Where do you get the proper fingerprint cards from? Thanks for any help. I am sure I will have more questions.