I think there should be crafting tasks for players who have abundant resources and to diversify the task system. The item required should be the ones you get from wood/ore/scholar/mobs, excluding Farming. Or we can have farming too, but will require a large amount of multi items.

For example:
-Forester: 10 of processed leather/wood
-Prospector: 10 of processed ore
-Scholar: 10 of processed scholar materials/scholar-made items
-Jeweler: 10 of processed gems/accessories
-Cook: 10 of processed cooking ingredient/food
-Farm: 50 of processed farm items
-etc.