I understand why your going to all this trouble, but if you dont have the proper visual set up your only killing yourself here, for the field shoot if you dont have the monitor set up under a tent or in a truck your really not doing yourself anything. the outside conditions change every few minutes or seconds depending on the day and the weather, what looks good on a sunny day looks bad on a cloudy day, what you need to do is test your camera and learn to read a light meter. a field monitor is not gonna help you with more that “yes we have a picture and it’s in focus and looks pretty good”. your camera is a good camera, use the zebra pattern option to find when you blowing out the white, as far as color temps either white balance everything or dont, you need to play with the camera to figure out what your shooting, the field monitor is not helping you with anything, as a matter of fact it can work against you, thats why you see more led screen hookups for monitoring purposes(they dont drift) these days.