Molds can be had from Rapine, Dixie Gun Works, and I've heard that the Lee Real bullet works. I use a Rapine 520-350 mold for mine. You will need Smith cartrages for the gun, Dixie sells them. They can be had in Brass or plastic. I use the plastic ones, they last a live time, they are reloadable and give a better gas seal than the brass. You DONT need a reloading press to load a smith, just put the powder in the cartrage and seat the bullet by hand!!! Ignition is by musket cap.
Guns are made by Pietta and imported by Navy Arms, and are of very good quality, however, not all original parts will fit, But any needed replacement parts are easy to get. So that is a good thing!