I don't know what to tell you about the rest. If you have all of those to do, you have a steep road ahead.
I just know that the attorney will charge you a fee and they aren't cheap.
It isn't like a trial, it is a petition that needs filing, and also more than likely your medical record from the mental health doctors that have watched you and treated you for months, saying you are recovered and fit to possess a firearm. There is usually a wait period before this can be done as well. This is where having a good attorney who knows gun right laws is helpful. Even then a judge could always deny you.
Each state is different.
Like the other poster said, certain types of " things" aren't classified as a firearm and therefore can be bought and owned, even with your status.
To understand that you would want to look more into the atf and what is classified a firearm. These things aren't as easy to prepare and use, but still work (think of more revolutionary/civil war or pirate pistols).