Wow, long surgery but it sounds like you have a good doctor who does it often enough that you're in very good hands. I agree that for most people it helps to know excatly what will happen in detail ahead of time and I have to say that with every surgery I have had (and between the oral cancer, breast cancer, and esophageal strictures there have been about 8 of them done by 4 different surgeons in the past 3.5 years) the surgeons have been really good about taking time to go over exactly what they will do.
Try to put this out of your mind in the time you have ebfore the surgery and spend some time relaxing with loved ones if you can. At least that's what I think I would try to do. Of course, if you can't put it out of your mind, you can come here and vent, ask questions, etc.
Nelie