Cap'n Kobold
Hero
Are there any restrictions in what you need to craft magic items normally?So the first question should always have been, what would a feat for magic item crafting look like.
I'd suggest not needing an exotic component to create common items (or a 20% discount if you do provide one), Proficiency in a tool, and applying double your proficiency bonus to Intelligence (Arcana) checks to research and identify magic items.