Re: WTB rear cover plate for Jackson Warrior
Control cavity or trem cavity?
Should be some on Ebay, but you'll want to make sure it's model-for-model. Not all Jackson import plates fit all similar models. The Kelly plate won't fit the Warrior just right, and I don't think the WRMG will fit the WRXT, though I could be mistooken.
Also, USA metal plates won't fit an import.