if your lawyer gave you an option to self repo it, go do that. going to court is going to hurt you in many ways:
1. its a long process
2. its expensive for you,
3. they probably wont tell him to pay you back
4. if they do tell him to, they won't force him

make a post asking if anyone lives in stone mountain, if you get responses, pm them asking if they would mind running by the guys house. if its there, go get it