Paint whole or take apart

If you pull it apart and paint fenders one day, doors the next, and hood and trunk lid the 3rd day......you'll have 3 different colors that came out of the same can of paint. Humidity, air pressure and gun settings might vary, which will affect the paint. If you pull it apart, do all the jams and bottoms of the hood and trunk lid and then put it back together. Back tape the jams and paint the assembled body all at once.