You did remember to send a few copies of this flier to the local PD/SO/feds, right?
I could be wrong, but last I asked, the local po-po love, Love, LOVE it when other folks dress up and pretend to be them, and tend to express their sentiments in rather tangible fashion.
Sometimes, a PR-24 shampoo is exactly the correct response.
Sending them a heads-up by tomorrow to get them in the right mood for any shenanigans on Saturday is definitely a nice gesture.
And, of course, if you handbill the poster in places Antifa is less likely to congregate, but where Normies do, it neatly unravels this clever plan, doesn't it?