Fort powder is very cheap these days, so no big deal to powder any good weapon up to 255. I know one can get a DC weapon with over 255 durability, but I think once it wears down to 254, one can only powder back up to 255, the normal cap. I could be wrong. Personally, I would craft with gold for the same lower requirements as the DC *plus* luck, unless I were trying for something very specific (like a bronze ogre slayer).