2 Question from a 1st time Car buyer

[jel2maine]

I recently purchased a 99' SE 24V Taurus I believe I got a great deal the car has 104k miles I brought it to 2 sperate mechanics, all said its good + I brought it to a 3rd mechanic to get my state inspection just to assure me the car had no problems. I paid 2,300 for it, anyway the only problems the car has are cosmetics it has a cracked bumper which IM looking to replace, I really don't want to go to a body shop to fix it because I hear they rape you w/ the price. I was thinking about purchasing a bumper then having someone put it on, I was curious if any one knew the price I should be paying for an after-market bumper and how much I should expect to pay to have someone put it on for me if I cant figure out to put it on my self. I also noticed the car has a CD changer feature if any one can give me some insight on where I can find a good deal on the CD changer as well as how much I should expect to pay for it as well as instillation I would appreciate it.