Your difficult experience with an earlier surgery is definitely a valid reason in support of your present decision. An ileostomy will give you the chance to regain your health and most likely give you a better quality of life. I approached my surgeries in good health, with a few extra pounds and a very strong motivation (life quality issues) that led me to first choose the J pouch, and later the BCIR instead of an ileostomy. But those were my motivating factors that may not be shared by others. One thing I have read on a number of occasions is the recommendation that you meet with an ostomy nurse at the hospital before surgery and have them mark the most desirable location for your surgeon to place your stoma. After surgery, this nurse will instruct you in the care of your ostomy and give you contact information should you need assistance with it after leaving the hospital.