W126 V8 Pedal Slack - Throttle Roller Part

[KC-ROX]

Hi guys.
I just purchased an 85 380se that is developing some pedal slack. It's getting pretty annoying at stop lights and it causes the auto transmission to shift early, so yesterday, I removed the air cleaner housing and took a look at the throttle linkage. I found a significant amount of play at the part circled in the attached picture. Of course, I figured I could just replace this plastic roller and it would be pretty easy to find online, but I can't find this part new anywhere. A fix for this issue or a link to a page where this part is sold would be greatly appreciated and would help tremendously.