Bump in upper case. Can I replace the upper case?

So today I dropped a piece of metal, by accident of course, on my Macbook Pro Retina 15" Early 2013. It got a nasty bump/dent on it just to the right of the mousepad, and some scratches here and there.. I am that person that wants to have it all nice and perfect and shiny, so my question is basically: Can I change the upper case on the Macbook pro retina? I don't care if I have to take out aaaaall of the stuff on the inside, but Is it possible? And do you have a guide here on ifixit.com? Or is there any guide, tutorial or video on the internet at all?

Victor