I am looking at making a silencer for my CZ Scorpion EVO S1. However, before anything gets ordered I need to have my Stamp and returned Form 1 in my hand. That means that I am not ordering anything right now. My concern is that I have to fill in the Length of something I don't have yet. I am thinking about 8" long. How thick is an endcap for the standard home build kits? How precise should I be on the length, as in if I write 8", am I good for 8"~9", or does it mean a scrubbed surface and measured with a calliper 8.00"? How are people getting them engraved? Will a trophy shop do it, and if they do, do I need to be there while they engrave it? Or, are people just home Dremelling them? I am also a bit concerned about the point in time that is between when I take possession of the kit and I engrave it. Am I safe by just not doing the final drilling before it is engraved? Can anyone point me toward any kits they like (if that isn't allowed, I am fine with that)?