I have a Mask. They are worth it. I also have a Spectre ii. I was concerned about FRP when I bought it, not so much now.
I just did some research and Silencerco stopped making the Spectre ii and Specwar, my two favorite cans. I'm glad I got them.
For small orders Access Metals is the best. They have a cutoff bin you can rummage through. I've found some really good stuff in there
They are in eastern Baltimore county, so a bit of a hike for you, but worth it.
Those guns are all comfortable to shoot. FWIW my main carry guns have become a CZ PCR and a G48mos. Pretty much two of the guns off your list.
Still looking at the Sig 365x though.
I've pretty much switched to Norma tac 22 when shooting 50yds or less. It's about the same price as CCI SV but feeds better in the x-ring. Palmetto has a great sale on it now. About 6.5cpr...
Link doesn't work. Here it is.
https://www.greatamericanoutdoorshow.org/
Is there a better weekday to go? I'm going to have to check the schedule. No way I'm going on a weekend.