A grand with the remote start? Price isnt too bad.

A decent double din dvd player runs $400ish, install kit and harness, $30, camera, $20-40, remote start- $150-$200 with all the stuff to make it work. Add a bit here and there for heatshrink, zip ties, and a bypass (depending on deck) if you want to use any video in motion other than the camera in reverse (illegal)
You'll probably want a remote start with a turbo timer, because why not.