I think that I read most building codes require 15" from the centerline of the toilet to the finished wall. SOme people find this makes them feel confined and a larger space is required. Even if you found a toilet that would fit, it might not pass the inspection. I'm surprised it passed the rough-in inspection. They did not do anyone a good deed by placing it where they did, since a standard toilet requires 12" from the finished wall to the centerline of the flange. You don't have that in either direction.