Hey y’all! My dad just gave me this poor, neglected, sad looking muzzleloader! What’s the best way to clean it/ is it worth it. I have bullets, powder and caps for it. But I need one screw for the lock I think? Not sure I need help. Pictures will show the hole on the lock hole(I don’t know the right terms). Barrel is rusty and I think the front sight is bent to the right? It’s a project I know, can ya walk me through what you would recommend I do?