Need to forget about the graphic that details rear sensors, overhead view and guide lines etc, not gonna happen unless you have front sensors in addition to the rears... even if you fit a camera.
Standard camera is just a video image of whats behind you. High Camera is the image + adaptive guide lines and depending on model switchable parking modes. I only supply and fit "high" cameras. Am not mobile unfortunately but more than welcome to visit London, leave the car with my for the day while I retrofit the camera and you go shopping up town