Very nice, how is the bore...yes cocking indicator is in wrong. In fired position it should point straight up.

To clean the wood rub it down with boiled linseed oilicon. Put a thick wet coat of oil on the wood and rub it in hard with the heal of your bare hand. Rub hard enough to feel heat. Rub all over and evenly. Let it sit for about 15 minutes, then rub the stock dry with an old t-shirt. Repeat the process every day for a week. Every time you clean the gun repeat the process.

For the metal use 0000 steel wool or bronze wool if you can get it and with oil clean the metal. Don't scrub or scour the metal you will damage the patina. You are just trying to remove the hardened grease and loose rust.