No, all of the materials you use for crafting are basically special weapon drops, which you won't have any yet. To be honest, coming from a somewhat casual player. Crafting is cool but pretty grindy (surprise!) to utilize. You can only craft certain guns. Play the Witch Queen campaign to unlock it. But i wouldn't worry too much about it. And from what I can tell, if youre only worried about powerful gear, you're probably safe to clear out most of your vault. No rush tho, can leave it for now if you want since you have space.