I don't think it's entirely a fake: Bianchi used those GPM dropouts and the Tre-Tubi Oria decal looks legit, but I think you are correct about it being a Euro-market frame, similar to the Rekord 905 that was sold primarily in Germany and Austria.
Maybe [MENTION=159681]Bianchigirll[/MENTION] will have some info to share...is anything stamped in/on the seatstay caps?