Water temp in Magnum (crate motor version). Where to place probe for gauge? Temp switch for fans?

FUNNY!!!! In a slow moment my super and I were just discussing yesterday how "unhandy" it was that Ma did not make it easy to install mechanical temp gauges!!!! Too bad Mopar did not go to a head mounted setup like Chev. that is lower in the coolant, and if you get a leak, won't leave the sensor "high and dry"