Depending on desired quality and conditon of the body, it can be $400 (Maaco) to $10,000. Most "reasonable" paint jobs cost $2-3k.

Maaco spray job is "OK", but their prep work SUCKS! If you can prep the car yourself, you can actually get the same result from Maaco as $1000-$1500 paint jobs. But it still not a $2-3k paint job...

Also, color changing paint jobs are typically more expensive because you have to paint the door jams for it to look good. Maaco charges extra $75 per door jam/under the hood. So expect to pay extra $300 for 2 doors, tailgate and under the hood.