Lots of political philosophy. Not much legal.
As near as I can tell from the legal-process standpoint there are only two ways to regain one's firearms rights. One is via appeals through BATFE, and they have no funds budgeted for any employee to review applications. The other is via a presidential pardon. The first is thus a dead end, and the second appears to only be available to wealthy Democrats.
Enough. Six pages worth of enough.