How do I fix the scratches on Kontrol S88 MKIII using any tools?

Yu Li

Hi guys, the stand of the my keyboard seems to be very old, making some parts of it sharp which left some scratches on the back of the keyboard when I was trying to move it. Though it was not really a serious problem, every function of the keyboard works normally and no one would care about whether there was some scratch on the back of the keyboard. But it just made me uncomfortable so I was trying to find a way to fix it using any tools or materials by myself since I did not want to deliver the keyboard to the local keyboard store for repairing and wait for couple of weeks. Do you have any ideas with it?