Psp Umd Drive Options

[EZYESS57]

I am looking at buying a used PSP slim from a coworker. After inspecting the unit, I found that the metal tray inside the UMD drive door was missing. I was also only able to get it to read a UMD game disc once after carefully positioning the disc and slowly closing the lid with the unit laying flat. Every other time the drive would either spin and stop and display a message that the disc couldn't be read or the drive would slip as if the disc was pressing to hard against the spindle and /or laser eye. Does this sound like something the the missing bracket would fix or does it sound more like a faulty drive? If the bracket is the likely cause, where can I buy this part or will I be forced to buy a whole new drive. Thanks in advance!