Army ROTC SMP GRFD Question... Can anyone help?

I have been offered a 3 year scholarship at the University of North Alabama. I selected GRFD because I have about 2 years of Active Duty time and 4 years of Tennessee Guard time. From the way I understand it I will be contracting as a MSIII because I have 60 credit hours and 6 years total military service. So I know that I am a SMP GRFD cadet with a three year scholarship. I also know that I have the Post 911 GI Bill and I will be getting that. Can someone break this down for me as far as money goes? Here is how I see it, SMP= E5 drill pay, stipend, and tuition. GRFD= Tuition and 1,200 for books. GI Bill= 80% tuition, 80% BAH, and 1200 for books. Is this right? Can someone explain all this to me. I really just want to know how the money is done. Actual amounts is not needed, but am I right or wrong?