D.,
First, I just want to say I can't imagine what you must have gone through! That must have been the most terrifying experience, and especially trying to adjust to life with a newborn...
That said, I had an emergency C-section with my first pregnancy (Emma is 3 years old), and was so devastated because it was not in my birth "plan." :) I struggled a lot with feeling like I'd been robbed of the birth experience, and thought that any trouble with nursing etc. was because of the surgery. The only complication I suffered was an allergy to the pain medication that we couldn't figure out, so I had an itchy rash all over my entire body for almost 2 weeks after Emma was born; while recovering from surgery...
HOWEVER...
None of that even comes CLOSE to what you experienced. I will say that I am attempting a Vaginal Birth this time (I'm 27 weeks pregnant with our 2nd little girl); but not because I was so horrified by the C-section experience. All said and done, it really wasn't that bad. I think the worst part for me was just the disappointment of things not going the way I expected them to - I put a lot of weight on that as a first time mom, and know now that you can't do that. :)
The recovery was a little painful, but I had medicine (after we figured out what was causing my rash), and a supportive husband/family/friends, and I got through it. Also, I was under the impression that I would be completely out-of-commission for at least 2 weeks... I was up and around after only a couple days. Yes, I did have to take it easy, and there were times my body would hate me for doing too much, but after a few weeks I was completely fine.
I would say that the C-section recovery is WORLDS easier than what you went through with your delivery. I have not done it the other way, yet, so I can't give you the other point of view, but I think if I were in your shoes, I would go for the C-section.
It just seems like since you already have scar tissue that has torn, it would be a risk for that to happen again.
I understand your fears, and I pray that you would have peace about whatever decision you make with your doctor and family. You can do this!
S.