It can be done without removing the intake mainfold. Just follow the steps for replacing a timing belt, but then, remove the water pump. The coolant pipe that goes into the back of the water pump is secured by two bolts which fasten to the back of the passenger side head. Make sure you replace the O-ring on the end of that water pipe, and apply some silicone based O-ring lube on the O-ring to make it easier to slide the new water pump into place. I recommend using a good RTV sealant on both sides of the water pump adapter plate gasket and water pump gasket. I've had them leak without the RTV.

Use a 1/4" angle grinder with some 2" roloc 3M surface conditioning discs to prepare your gasket surfaces, its super quick.

You'll find that its not such a difficult job, just take your time.