A group of Instructors tried to do exactly that, albiet mainly on weekends for the Dist. Learning student. Sadly, there was not enough people out there who either who wanted it, or were willing to risk a new school. Alas, it didn't last despite the best efforts of those who did give it a go. Pilot Ground Training (PGT) was the company, try a search on here for the name.
Nice idea, but the only people who could afford to satisfy that demand is an already existing school, and a reputable one at that.