I've decided I'm going with the Dead Air Mask.
1) Fingerprints are done. (Having lots of friends whose names begin with "Deputy" made that part easy.)
2) I'm going with a trust, and The Silencer Shop has their "Single Shot Trust" for ~$25. I could draft it myself, but it's worth $25 to not have to do so.
3) The Silencer Shop has an app for taking passport photos. . . . There's an app for buying a suppressor!!!
4) Now come the hard parts: (a) paying (ouch) and (b) waiting.