Hi tedibear,
The thought that it might be a fake did cross my mind but even if it is, I wouldn't mind because it's really well made. It would be a good platform for mods and experiments. In general, brands/names don't really matter to me or even where the guitar is made. For example, my Epi Wildkat Koa was made in China but it's flawless, which I can't say for the American Vintage 52RI Telecaster Plus (very long name!). Not made well at all but sounds really good though.
So, I value workmanship much more and how the guitar plays (once setup properly!). It just bugs me immensely not to know which model this one is!
I agree, the headstock does look odd for a Gio and the horns too.
There is a serial number in the brackets but it's a sticker?! I've seen it on some Ibanez guitars although I find it a bit weird.