It looks like a level 1, with straight seatstays. On the stock 1 & 2's (well, 2's in 2009, 1 & 2's in 2008) they had curved stays, and the level 2 has a slight diamond shape to the downtube - if I remember correctly. Looks though like the 'custom' part would be the stays, traditional geometry (i.e. non-compact), and the paint job... including paint on the fork (fork is probably a true temper alpha Q CS10 or 20). The overall geometry would technically be custom as well since all houseblend (stock) frames are compact.

EDIT: actually, I can't tell what fork that is. Not sure if it's an Alpha Q or not.

Either way... nice bike!