The only alternative to a cesarean section is a vaginal delivery, which can be done with the help of either forceps or vacuum, if necessary. With your condition, there are risks no matter how your baby is delivered. Let's discuss the risks of having a vaginal delivery.
If you try to have a vaginal delivery and the baby is too large to move through the pelvis and the birth canal, you will need to have a c-section. It may not be possible to know whether or not this is the case, until you're in labor. Cesarean sections performed after your water breaks, or during the progress of labor have a higher rate of infection than planned cesarean deliveries.
So the decision to have or not have a c-section rests with you, but it is very important for you to discuss your risks and your situation with your doctor when making this decision.