Crank position sensor is just about straight down following the oil dipstick tube. I believe that the wire passes behind the tube.
One cap screw holding it in.
Spacing between the sensor and the flywheel is semi critical. If there is a spacer reuse it, if not don't worry about it unless it doesn't run after the new sensor is installed. I believe it is supposed to be 1 mm between the sensor and the teeth on the damper.