Garages don't know what they're talking about. I had a garage tell me I need to get new T-bar brackets, cause they'd need to cut them out to replace the new ones...
I did the SLR lift myself, I had a buddy help me with the 3AAL's. The front, just get some really good sawzall blades and go to town on the cam bolts(which you'll need to buy new ones at the dealership, and washers). After those are off, it was a breeze.