Sounds like you're on the right path. Don't worry too much about a collapsed lung. That is actually a really common complication. I had both sides done at once and both lungs collapsed. I woke up breathing fine and didn't have any pain from it at all. If they hadn't told me it happened, I never would have known.
The surgery is risky, but if you're in that much pain and you're ready to go for it then it's the right move to make. Do a lot of research, make sure you have a fantastic and experienced surgeon, and ask a lot of questions!