thanks! i would give it a shot if i were you!
really the hardest part of doing any damage is the initial disassembly, removing the plastics from the metal frame. the glue was hard to separate. however, if you use a hairdryer to soften the glue, that should make it a lot easier. (dont forget to take the 2 bottom screws out!)
once everything is separated, the sanding process was tedious, but there was really no way to mess that up. lol. once you sand it all down, all you do is polish the frame for 20 minutes, and then reassemble everything, and your all set!
if you are worried about messing up your case, buy one online and then attempt to do this on the new one. heres the site that i bought an extra case from:
ive already had multiple people come up to me and ask me what phone i have since ive done this. haha. it really makes the phone look like something completely new, and nothing that anyone has seen before.