I did not receive any email notifications to the above questions but since I'm here...
I did not include a First Amendment challenge against the state laws because the Nordyke v. King case was originally a First Amendment case and it lost. The Nordyke v. King decisions are online read the pre-Heller decisions in that case and you can see why my 1st Amendment challenge to the state bans would likely fail.
I did include a First Amendment challenge against the City of Redondo Beach defendants which was an easier case to make given state preemption and the fact that, at the time, the City did not allow demonstrations, not even with a permit as the city code prohibited the issuing of permits to demonstrate. And because the City did grant permits to movie companies to film actors carrying real guns in the city.
There is a good case to make that the city prohibiting the carrying of an unloaded long gun, which was perfectly legal at the time (and still is if the long gun is an antique), in protest of the city and state gun laws while at the same time permitting films and TV shows to be made in the city with actors carrying firearms in public is a violation of the First Amendment.
Technically, my First Amendment claim against the Redondo Beach defendants is preserved because I voluntarily dismissed my lawsuit against the Redondo Beach defendants, without prejudice. I can refile it, or a new lawsuit anytime I choose.