You can find everything here at this web site for do-it-yourself. You will need your paint code from your car.
http://expresspaint.com/
Paint in a spray can is 14.95 plus shipping. Buy 2 cans. You will need 1, but it's good to have a backup and you may want it for touch up work. They have a good section on how to paint and primer parts. I just used some over the counter sandable primer to make the surface smooth and not textured. Just keep applying the primer and sanding between coats until it's smooth and then apply your paint color. Let it dry 24hrs. and then apply your gloss coat. Let dry for another 24hrs. before re-installing. I posted a how to a few months ago. If you do a search on this forum, you will find it.