Can I replace the aluminum outer case the laptop comes in?

I have a macbook pro 17" 2009

Processor 2.66 GHz Intel Core 2 Duo

Is it possible to replace the aluminum outer case the laptop comes in?

My wife was using my mac and droped it,

on the front left corner there is a dent,

and it is affecting my CD's that I put in my Mac

I have to loosen the screws on the bottom to get the CD's out....

Can I change out the entire outer shell ... Tack the components out and put them in a new shell????