I‘m not really sure if you can get all of the items with quests, it’s really grindy and until now I only got shields from it so maybe there is a secret passage. Did you get 100% or did you stop trying?

So i  can‘t find the secret passage but i found out that you can unlock many recipes from the daily monster quest by increasing you renown value.

There is a big part of items that can only be crafted and the item list says the recipe is found in castle town (Like Excalibur, Devils Seal Sword, or most of the options). But i can’t find any of the recipes, where can you find them.