Changing blue housing to white?

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http://forum.xda-developers.com – I'm just curious about how I might go about changing the pebble blue housing to the white housing, if I were to purchase the parts somewhere. I've tried locating people in my area who might be interested in trading with me, but it's been futile. Obviously, I wouldn't be tearing the phone apart by myself, but does anyone know of any places that might do something like this, like Best Buy/Geek Squad? (HowTos)