Rick,
He stole your things ... and you can't do anything about that now.
Just don't let him steal your hobby from you! You have control over that.
PS: Just one word ~ POLICE. Call them; report it; even if they don't have enough right now, you never know when something new will develop (informant, other similar cases, pawn shop, who?knows) but you've got to have a record on file of your loss ... got to!! They might find your property somewhere down the line and the only way they can connect you to your property is through a report already on file.