Just thought I'd add this, my flight school rents well-equipped 172N with dual navcoms, and IFR approved GPS for $99 an hour. A 2004 172SP with Autopilot, a KLN-94, and MFD-550 will set you back only $130 (five more than your quote). $140 will get you a 2006 172 with a G-1000.

Second, those 750 or so hours in a single teaching somebody give you something that I, nor anybody else here will ever have at 250 hours regardless of background. Decision making skills. It's great that you know how to push buttons and do flows in a CRJ. I'd prefer to learn that in training. On their dime, not mine.