#137549, "RE: crank sensor cracked in half.. >.<" In response to In response to 1
Major PITA it sounds like. It's definitely a tight area to work in. If it were me I'd just get a small screwdriver or punch (something short enough to give you the clearance) and pop that thing through into the pan and then drain the oil and drop the pan.
Remember the sensor itself is a magnet. So it might stick somewhere after you punch it through.