You should have 1 temp sensor on the side of the block. Move it to the rear passenger head. Pull the plug out and tap it to the sensor size. No need to tap the water pump. The oil pressure switch on the back of the block can be installed on the oil cooloer block off plate by the filter. You'll figure it out once you look at it. Don't forget you're fuel pump wiring is in the oil pressure switch so don't remove those wires, keep them like they are. Sometimes members like to drill the top of the water pump for the throttle body heater hose but I just plugged mine be cause it's a waste of space and the air will work it's way to the radiator since it's higher than the heads. Feel free to do as you wish but I guarantee you don't need it and it won't hurt the heads.

Good Luck!