Only thing I'd change is the amount of materials required to make even basic stuff. Even a basic hardsilver ingot for example

4 hardcover ores
1 hardsilver nugget

That nugget though needs
5 hard silver sands
1 silver ore.

That's quite a complex recipe for what is essentially a basic crafting ingredient

And by the time you've got 3 or 4 of those ingredients together to actually make something it gets pretty crazy pretty fast.