Have done this mod numerous of times. Best way to go about it is to remove the power steering pump. Remove the rear cover off it (rear sections is the hydyaulic system for the HICAS). Here you will see a round object with little metal inserts slotted into it. These rectangular peices of metal are the vanes of the HICAS pump. Removing these inserts will stop fluid flow through the hicas system. Then you can block of the hole which feeds the HICAS lines, and remove all of the HICAS componants. You should have a loop at the front of the vehicle which can be removed, a solenoid on the front right of the engine, lines that go to the back and another solenoid at the back. If you want pics let me know!