I have DB carbon fiber inserts (console, non-smoker ash tray, and exterior vents). They don't have scratches or deterioration yet... but they have been collecting dust now that I sold my Boxster a few months ago. I posted them to Facebook without much luck, so unless you're interested I will make a post here soon. I can ship or do local pickup in AZ. Here are some images:
https://www.facebook.com/marketplace/item/217167469739355 or
https://imgur.com/a/B8oLcHG (scroll to bottom)