Defending life and protecting property? Well, that's what the police and yer two feet are for, boy....or so I think the judge would say. See, here's the beauty of it....using a firearm is not the only way to defend life/liberty/property, so by denying you that one method does not deny you of that right. For example, denying you the right to shout fire in a crowded hall when there is no fire doesn't deny you the right to free speech.
May I make a recommendation or two?
1. If you can, get Evan Nappen on it. I doubt if anyone out there is more familiar with and has worked with New Jersey Firearms laws than him. Honestly, I'd go by his opinion on whether or not this has a chance of working.
2. If you have not done so, apply for the permit. Wait the time necessary, document everything. You will be denied, but without this I think the case would have much less credibility.
3. 2C:58-4e allows you to request a hearing regarding the denial of the permit. Do so. Find out EXACLTY why you were denied, and obtain all relevant paperwork. If they don't have the hearing within 30 days (the law), you then have an extra whammy for the case.
4. It might help to find several other individuals of good character who have also been denied their right to carry, and have them join in the suit. Possible also have one or more of the NJ gun organizations involved (not the NRA branch....smaller, local groups).
5. Please...and I know this sounds harsh...please don't expect anything more than getting some news. NJ courts are not overly fond of the right to own firearms, and they are especially uncaring of the right to carry. Our federal appeals court isn't much better, either. Legislation has been lingering for more than three years now to loosen firearms laws with regards to concealed carry, to no avail.
Other than that, if you are willing to do it I say go for it. Maybe it'll be the 'shot heard round the state', so to speak. If I weren't so damn poor, I'd apply for my denial of permit and join a suit like that. This I think is one of the reasons why NJ has had such a tough time with RKBA...not a lot of people willing to push like this on their own volition. Either way you go...kudos to you sir.