Heh, looks like my old apartment. Back in those days, I hung a mirror on the wall and bounced my IR signal that way. Worked like a charm, as long as the mirror was carefully placed and the remote was aimed carefully.

And the whole idea of the IR repeaters is not to put them in between the two locations. You wouldn't put the repeaters on the wall between the two rooms. You would put them each in the stereo racks with the rest of the gear in each room, they would be unobtrusive that way.