Roland Fantom X Screen Flat Ribbon Cable

I need to replace the 20 pin flat ribbon cable that goes from the Fantom X screen to the main circuit board. Do you have any of those in stock or laying around from a parted out Fantom X. That cable is uniform for all X series, X6, X7, and X8. There are similar cables on the internet for sale with 20 pins and pitch of 0.50mm. However non of them are long enough as the original from Roland is 320mm, or about 12.5". Any suggestion would be grateful.
Thank you!