Making a Blacksmith need help with the class

I want to make a blacksmith for 1e. I know of Forgepriest and Forgemaster but then I found Spheres of Might and how it outright has a blacksmith class. I see Spheres of Might plays a little differently the normal Pathfinder but don't know enough to know if I can just play the class in 1e without changing anything. Could I get help on what would have to change to be able to play it, if anything or even possible?