Hard is relvent to skills
Taking the dash out completly is not required but by the time you do this you might as well have
You will have to remove both winshield A-piller paddings (2 screws each)
You will have to remove the top dash pad (3 screws driver side)(1 screw wiper switch) (3 screws passenger side)
you will have to remove the steering colum echelon (3 screws)
Remove the manual overide buttons below the steering colum (2 screws)
you will have to remove the screws between the dash pad and the door jam (3 screws)
You will have to remove the screws between the center guage bezel and the dash pad (3 screws)
Reach behind the speedometer and the tachometer and undo the spring keepers and disconnect BOTH cables
Now you can "pull down" the dash pad towards your knees to give yourself a little more room. Be carfull of the points of the dash pad that contacts the center console
If you look closley there are (I think) 3 screws holding the speedometer to the dash(its been a while). Be gental they are only screwed into plastic.
The main harness looks a little daughting but it is held against the back of the dash pad with those bendable straps that are fastened to the tachometer and the speedometer
Don't be a bull in a china shop and its not that bad really. I would guess if you know where all the screws are on the dash it will take you most of 5 hours start to finish. Just make sure you familarize your self with ALL the screws holding the dash to the car.