You don't have to fully remove the wheel liner, just enough to get your hand in
You don't have to fully remove the bumper, just a few is enough to pull it down enough to slide the light out, from memory you don't have to touch the bottom bolts, which are 50/50 on coming out
2011 is probably going to be okay
2005 are normally well rusty
@The Panda Nut is probably better as they I beleive just changed one