N82 LCD Screen Cover Replacement - Need Some Help! My Device Is Looking Pooey

My precious Nokia N82 black is starting to look like crap - junk - cheap - whatever you want to call it. It's a beautiful phone when it's brand new, but after a few scratches it no longer looks like the sleek & smart device that I've come to love. After a few falls - mainly out of my pocket and onto concrete when getting out of the car and a few fumbles and tumbles it's taken out of my hand when I've had one two many beers - it's time for a new screen. Help!

Now of course I'm not talking about the actual screen that displays the picture, I'm talkin about the clear plastic cover that protects the screen. It's become scuffed up and has a few thin scratches that just look horrible in certain lights. It hasn't really affected my actual use because I can't really see them when the backlight is on, mostly when it's off. So I'd like to just replace the plastic cover, not the entire front cover just the part that protects the screen. And of course I prefer an original part instead of a 3rd party piece of junk replacement.

Does anyone know where to get this for a decent price online?

The rest of my phone looks great - minus a few scratches on the corners. Also on the back, the grey part around the lens, the paint is chipping away a little bit revealing some white. This doesn't really bother me too much, I think it adds character.

If you have any tips on changing the screen I'd appreciate it as well. Pictures of this procedure would be awesome! Thanks everyone...