Hey mornin GWP here. I don't know if there is a Lee valley tool down there or maybe an equivalent business, (carpentry tool supplier) or busy bee, princess supply, usually cheaper than most gunsmiths business!!!!!! Broken glass works too, just be careful & put lots of tape on the top side to hang on to. Trappers supply also has hide scrapers that a hardened, maybe alter the shape keep cooling as ya grind. Hope that helps, I'm out πŸΎπŸ‘£πŸΎπŸ‘£