It will depend whether you just want new paint in the same color as the car is currently, whether there will be some bodywork, whether you want the windshield removed or not and whether you want to participate at all in the process, e.g. removing and refitting all chrome, lights, bumpers, trim and so on yourself.
Over the past two years, I repainted four cars myself. The paint, primers and consumables such as sandpaper, polish etc cost me less than $500 per car. There are (much) more expensive paints available and of course the labor is where it all adds up. I've heard of jobs that were as little as $3,000 to wild stories of over $40,000 for just a paint job (although from my own experience I struggle to understand how one car can take so much time to do even perfectly).
My advice would be to go visit a few places, get impressions and cost estimates. Amounts quoted here will likely be 'all over the map' and probably locale also makes a difference.
