OP is pinging out of the same location as the listing. The same IP pinged from this account and thread. Considering the immense risk, there should be transparency, as authenticity is the value, and the potential downside is tremendous.
I can corroborate this. My uncle Sug Kenimori (no relation) knows their uncle and worked at Sega. They say its 103% legit. It was indeed hanging in a family home for 30years just like any common person would have done with something like this. You can tell by the way it is.