Given where it's likely manufactured, perhaps give AliExpress a shot and see if you can find it there.
I found this: Organizer Tray
The challenge is that AliExpress doesn't show any matches for the Telluride. But, when I searched the organizer tray that @Semator20
noted, it shows on Amazon.ca as being compatible with the Telluride. So I searched AliExpress for trays compatible with the Toyota 4Runner, and it came up with lots of hits. The one I provided the link to seems to be one that fills the entire space, with nearly no gap at the front (there is a small opening in the front driver's corner of the tray, which would allow you to plug something into the accessory port in the bottom of the well, and run a cable up to put the attached device on the installed tray above it.