-1 to a detailed crafting system that fills our inventories with dozens to hundreds of crafting materials.
Crafting limited cool things as a result of certain quests - like the Sussur Bark Questline - is the best way to go imo.
All other crafting should at most require a specific crafting kit - scroll, poison, trap, etc - a gold cost, and an appropriate skill check (also ability to cast that spell if you're making a scroll).