you can probably take down and re shoot the exterior for between 1500 - 3000 depending on where you go.

Demand to know the type of paint (dupont, PPG etc etc) if it doesn't sound like one of those then keep movin'

Custom paint jobs without pulling the engine and shooting the engine bay, door jambs, trunk etc etc (a factory paint job) look cheap. "factory" paint jobs are mad expensive yo! Figure at least 4-6K and much more if you use custom coloring like House of color or do any tricks to it (bowling ball, krinkles, graphics, candies, chameleon etc)