White is a very easy colour to work with, so you're lucky :)
Watch a few youtube videos on the subject, and give it a try.
You'll be amazed the results you can achieve with simple equipment...
For instance:
This car was badly faded, right down to the undercoat.
All I used was sandpaper, colour matched paint, clear coat, and a rotary polisher.
Repainted the entire right side for about $60.