Is it fair? Use a roller and paint it yourself. You want them to paint your door really nice blend the door painting to the front/rear panels, no overspray on anything and do it for what you think is fair. That is a fair deal good luck finding anyone that will do that under that price and expect top do it again after the paint begins to flake again. You get what you pay for. Go to Speed-o-Paint and get the whole car done for less including drips, runs and errors.