Doing paint and body work is not cheap...doing it properly can be frigg'in expensive. Many people, most people that have never done this type of work before can't understand why it would cost that much. Then they do it themselves and they start to realize that there is a reason the prices are what the prices are and a whole new respect for the "Body Man" and "Painter" is formed. Another personality trait that is discovered by the owner and now the technician is the difference between a painter and an applicator...a persons with the attitude, the aptitude, the patience and the passion for this craft will set themselves above the bar and continually try and raise it...the applicator puts paint on.
If you're not to sick of sanding by the time your car is done, there is money to be made polishing and your material costs aren't astronomical.