Looks like you lucked out, that dude's ads are real shady. The Y66 he has up marked as "full Ultegra" isn't, it has a Claris rear derailleur. It used to be in the picture set in the ad, its been conveniently removed.
I guess I missed that ad. The two bikes he had listed were exactly as he advertised. I see a CL poster that has the same Fuji, though in a 56cm, and a Y66 for sale...but the Y66 has a pic of an Ultegra rear derailleur. Different guy though.