The idea may need to be revisited. But, as I see it, it might make more sense to show up en masse at one of these groups (with a number of their members in tow) - and say "it's time to step up". If you've got orgs with attorneys on speed dial, dues payments rolling in, it may be time to apply pressure to get them to back an orchestrated plan like this. I'm not saying going it alone is out of the question... but as @maintenanceguypointed out, there's certainly something to be said for an organization with an existing infrastructure.
Purely my own opinion (and I'll trust people "in the know" will chime in if they disagree):
ANJRPC has the lawyers on speed dial, has a certain repeat membership rolling in, and yet I don't see a ton of legal action. I think they need "pressure" from members to do the right thing. Am I wrong? Maybe so.
NJ2AS is feisty and activist - they'll have no problem filing a lawsuit. But they also have a "loose cannon" in Roubian who seems capable of doing as much (or more) damage than good. That's a real concern. Can he be tempered?
CNJFO seems (to me) to have a mission geared to awareness raising, recruiting new people into shooting, and building bridges between the tactical shooters and the hunter type of shooters. I don't know that they even lean towards filing lawsuits...? I think that's a mission mismatch.
But, better yet, isn't it overdue that these groups worked together and ALL participated in urging their members to apply for CC... collecting the records... and filing an action as co-plaintiffs? The Wrenn decision in DC is sitting out there... like a shining beacon, people. What's the paralysis all about?
Were these groups all approached about this idea initially? Did they beg off? Or did you think they weren't a good fit... and not approach them at all? Just curious.
Personally, instead of all the sobbing and wailing I see on here... I'd rather see some definitive action being put into place. Again, it may be time to revisit that idea!