This is the guide xAshex went by: https://docs.google.com/spreadsheets...qjs/edit#gid=0
I recommend holding off on both your tools until 3.4 drops. Without knowing the exact requirements, it could end up being a waste to meld a ton of Craftsmanship. Personally, I suspect we won't need to at all as Craftsmanship will float around the 940-960 range, if only because much higher makes the Augmented set worthless.