Pewter is an alloy of tin and lead, I understand not wanting to make a new resource but could you make it so that when tin is detected within the mod pack, that it makes it so you can have pewter be an alloy of tin and lead like it is in the real world? Or in this mod: https://www.curseforge.com/minecraft/mc-mods/allomancy, which adds tin and the recipe is 2 tin and 1 lead within the mod, it is partially because it would be nice if the alloy were consistent in the mod pack created when both this mod, and the alloymancy mod are present