I read just read your post. Thoughtful, but that's a second half plan when we're at the two minute warning. Elections have consequences and we lost, so we need the courts to protect our rights.
I think the odds of getting an injunction preventing seizure are low. The court challenges have to start the day the legislation passes so the Liberals can't claim victory on the issue.
While I agree a court case could *potentially* become expensive, the initial filings and registration of litigants (if it's class action) will have symbolic value. If we're really acting on behalf of hundreds of thousands of gun owners, though, I think raising a few million dollars should be easy, say 100$ per owner? Small money for people worried about losing thousands of dollars worth of firearms.