Let's take weapon crafting: in order to craft a knife you would need recipe which require skill level 5 to use, which then require some materials and tools, (note) if you have a knife recipe at level 5 and you have supreme level materials, you should still be able to craft knife but at level 5 only, to craft high level knife you would need to level-up your weapon-crafting skill, in order to level-up your skill, you would need higher level materials and higher level tools, let's say the next level is 15, so you could only level up to level 15 with low level materials and low level tools, to level-up pest level 15 you would need level 15 recipe, level 15 and up materials and level 15 and up tools, this system prevents form spamming low level materials to level-up skills to 100% and promotes trading, and with each level-up, increase material requirements, and remove knife blade as requirement, or, make knife blade recipe in tools skill, there are tons of metal laying around, also, durability should be based on metal type as well, for example: compare stainless steel and gold, stainless steel has good durability but gold don't have good durability instead it has value based on it's rarity.
Same way is for all other skills, wainwright should have different tiers of carts, like lower level forage carts use of forage materials and highest level carts using bone crafting and highest level materials and everything in between.