Nope, not a factory build. IIRC this was sent to Colorado as a kit, assembled by Boulder Speedster, and then converted to Subaru by Pro-Street Performance.
I don't know many other details since we didn't do it, but I was contact by a shop a few years ago that was working this car (or one exactly like it) and the engine/trans cradle was welded in with no way to remove it... They needed to change the clutch or something and were going to have to cut the engine cradle out of the car to do so.
That said, it is a turn-key car for the price of a deluxe kit... leaves a lot of room to correct things for the right buyer.