Pulled the trigger and ordered an Autometer oil pressure gauge to match the trans temp gauge I have installed in the cubby below the heat/ac/defrost controls. I think it looks great and gives me an idea what is actually going on inside the 4.7 more than the factory dummy gauge.
Cold start (60 degrees outside) with Napa 5w30 full synth
Reved up while cold:
Full operating temp at idle
It is worth noting that it will jump as high as 80lbs when on the gas at full operating temp and runs around 50 lbs or so during most driving.