It has been a long time since I worked in L&D but I do know that you still have time for your baby girl to turn naturally. It is also possible for the doctor to manually turn her while you are in early labor - that can as you have experienced be painful but I have seen it done and the moms did just fine. A breech can still be delivered naturally though I don't know if they will allow that - just to be very safe.
I really do understand that strong desire to deliver naturally. Does your doctor know how you feel? If not, talk to her/him OK?

If a c-section is called for, I see you already have moms writing that they also did just fine. Sirrahsim (above) is my daughter and I visited her when Tyler was 4 days old and she acted like nothing had happened. I have heard it said that the incison site is sometimes even less painful than the vaginal bruising, tearing etc - that go along with the natural.
You will be just fine. Try to relax and look forward to meeting your new baby