You and me both Matt. I think you're right and it's some kind of Subaru skunkworks project.
The vendor is the same guy I got my '06 EJ25 from, the one with the alloy sump. He does come up with some bizarre stuff, just ask moose.
Well, it's for sale at the equivalent of USD3,039... but if I buy another new engine a year after my last one I'll be sleeping in the garage with the car.