Hi G,
You have the option of a shroud or an electric fan with thermostat...at least those are two options you have. Others may suggest different alternatives. As for that temp gauge, middle should be around 160 or so, but I'd suggest using some sort of thermometer on the engine to give you a more accurate point of reference.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end