Basically unscrew every darn bolt it takes to get the darn thing out. Sounds simple minded but in reality that's about it. If you need to dismantel the entire A/C unit, then do so. If you need to take out the fan shroud, water pump, distribtor, etc. then that's what it will take.

Trust me i've had to practically remove my front grill, hood lock assembly, remove a trans cooling unit, etc . to rotate my darn headlights.

take your time and pay close attention to what you are doing and what goes where. So you won't have such a headache peicing it back together.