I found this amazing picture yesterday over on Roboplastic Apocalypse and it has gotten deep into my head! I can't stop thinking about it! There is a very good chance this is a custom of some sort, but the box just looks so well done that it is hard to believe. However Heroic Decepticon commented that the styrofoam is obviously from Scorponok and the figure looks to be painted instead of molded in the famous "GPS" gold color.
If anyone happens to see this guy at Botcon I would love some better high-res pictures so I can get a good look at that box. And it's too bad it is a custom because that would really compliment Overlord very well.
UPDATE!!! See below!