PE out of UG straight to b-school or 2+2? Chances?

I've recently accepted a position at a MM PE firm ($2-8B AUM) that I hope will lead to a FT position upon graduation (all SA's last year were offered positions). The firm is medium-sized for a PE firm ~50 employees. Provided I get a good GMAT grade (I am currently getting 760-770 on practice exams), do I have a good shot at a 2+2, or deferred admission to Stanford? How do my chances look like at a HBS/GSB/Wharton if I stay for 3-5 years at the firm and get promoted to Associate? I currently have a 3.8GPA from a top 25 semi-target have extensive leadership experience from student government, volunteering, etc.