That early Sunn head on Ebay is actually one of the later original ones that has the normal non-"paisley" tolex and the early Sunn badge, not the "smiley sun" one. The grillcloth has been replaced with some non-Sunn stuff and painted black and the preamp section on top has been modded....the pilot light has been moved to a new hole and it's original hole was made into an imput jack (they are all normally on the rear.)
Still, a pretty rare head.
I'll post pics of what it should really look like in a new thread.