A.S.
I can't give you alot of advice about the money issues, but as far as becoming a midwife....
My Mom is a nurse and she went back to school when we were kids. It was very very hard for her. And afterwards, I think alot of times she wished she had it. There is crazy demand for nurses and you can work lots of crazy hours, but in general she always felt very disrespected in that profession. She worked like 15 years in one area and STILL they would not move her to the day shift. Hospital work kinda stinks.
However, I don't know the specifics of this program but after reading a book on midwifery (The babycatcher by Peggy Vincent), I saw this link on her website for distance education for midwives. If this is your passion and what you want to do, perhaps you should look into it...
http://www.midwives.org/home.html
I understand your yearning. My dream is to be an LC and birth instructor so I hope there is some way you can make it happen. I have seen your advice on here before and have always agreed with it and thought you have great knowledge.
Good luck!