Good news, I'm in the US and can buy as many as I want.
Though I want to keep the end-addressed pencil form factor. These are going to be in a backpack most of the time, so keeping the whole kit small is one of my goals. I am hoping to keep it within the 22mm body style so I don't need extra clips or anything.
I could do that very pretty copper tube style you did, but I don't know if my hands are the right kind of steady for that.
Part of why i'm getting so detailed on the dimensions and threads of these mics is so I can see what will fit in them. It'd be nice to know what donor bodies can be used.
-Steph