Hey, I've seen a couple gibsons and epiphone thunderhorse guitars that had the same solid black and one with a silver truss rod cover. The original cover isn't serialized or blessed by Skwigelfs himselfs so you can have a custom one duplicating it's material and engravings. I found ebay has a lot of retailers that will give you what you want for DIRT cheap, just send them an email directly after purchasing.