If I am recalling correctly, we pulled all the A/C stuff out of our L48 car with the engine in place. I assume the L82 is the same. There's quite a bit of room on that side actually. Mike is correct though, the inside and outside parts all have to come out at the same time, since there are at lease 2 "through" bolts/screws.
I don't recall much cursing or hating the job too much, so it might just take you an afternoon.