Most pain is in your head! The way you prepare for labor will really influence how you feel the sensations. I'm not saying that you can be pain free, but if you think you're going to be tight and that it will hurt terribly, then it will.
I don't have experience with your condition, but perhaps there are things you can do to make it a bit easier, like massage the area during labor with some olive oil to help you stretch... and think elastic thoughts. You don't have scar tissue everywhere - there still should be plenty of give. Hang in there momma!
Mom to two intact boys, born at home. DS1 11/07, DS2 9/10