The idea is great, if that can be implemented it for sure brings a lot of fun!
But I see the problem here:
Quote:will have better stats than their analogs
Soon enough everyone wouldtry to have the best things possible, which is understandable, but likely ruins every balance.
It could however be used to do something about ore, for example /craft silver, which then crafts silver out of the ore. That would need a lot of trade adjustments but it would make sooooo much more sense then selling ore for a higher price then the real product.