Late reply but I ended up getting a CZ P10C. I tried it out on the range with a bunch of other handguns (Glock 19, VP9, M2.0, XD-M) and I felt the most comfortable, had the tightest grouping with, and liked the P10C the most.
If you're wondering what crazy area I live in, it's Crook County, IL, which is pretty much all you need to know. But if you want to see the insane list of what isn't allowed here, this is the full list of prohibited firearms:https://library.municode.com/il/cook_county/codes/code_of_ordinances?nodeId=PTIGEOR_CH54LIPEMIBURE_ARTIIIDEWEDE_DIV4BLHOASWEBA
Of course, due to loopholes in the definition of the NFA, I'm going to get a 5.56 chambered, 11.5" barrel, AR pistol with a brace and folding adapter to reduce the length below 26" with a red dot sight. The folding adapter is because the ATF recently said that overall length needs to be measured with the gun folded now.
Legally this is still a "pistol" which means the rifle laws won't apply and it bypasses most of the semi auto pistol laws listed above but not all of them. To fully bypass all these laws you need a concealed carry license, which means that Illinois handgun laws will preempt all other laws at the local level (such as Crook County's) and since there is no restriction on magazine size at the state level, I won't be subject to the magazine limit here.
So, putting all this convoluted bullshit together, my AR pistol needs to be less than 26" overall, have a less than 16" barrel, needs to not have a vertical foregrip, needs to have a stabilizing brace and not a stock to be considered a pistol, and ON TOP of that I need a CCL so that only the state laws apply to me to remove any restrictions on the magazine size.
After ALL THIS is done, I am technically allowed to walk around with this thing in my backpack with multiple 100 round drums if I wanted to but the legality of these things is getting really shaky around here, especially after the mass shooting hysteria that's been going on for a while.