My modules are legendary

Space Age. Craft a Legendary (top-grade) Quality Module 3 - i.e. produce the module at legendary quality. Either assemble it from legendary-quality ingredients, or run quality modules through the production chain and upcycle (recycle-and-remake the lower grades) until a legendary one pops out. A late Space Age flex, once your quality/upcycling loop is mature. Base version is Crafting with quality.