I do about the same thing as sberlin. I got the ball on a stick from Harbor Freight to line up hook up my travel trailer, now with the 5th wheel and Andersen hitch I set the ball on a stick at a certain spot centered and in front of the hitch. I backup until the pin plate touches the stick and I know I am far enough back.
I am thinking of getting a camera and have been looking at WIFI HITCH CAMERA from Rear View Safety. The camera is battery with a magnetic base that connects to your phone. To me it seems the best location for the camera would be in the bed, looking up at the hitch so the portability of mag base camera makes sense to me.
https://www.rearviewsafety.com/safet...3112-wifi.html