I want to put those stick on chrome door handle covers onto my w126 82 300sd but none are listed for it. Does anyone know if the ones listed for other years / models will fit? anyone ever buy those things off ebay? any good?

__________________
1982 300sd, new project car to restore

It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.

If they are chrome then chances are they are ABS plastic.
And regards quality control - I would inspect closely before buying anything.
Most ABS molded items still have remnants from being detached from the frame they were molded on, little remnant dags etc. Crapola !

There is a mob in Hong Kong called micacle auto design
2003-2009 MERCEDES W211 - E, 1995-2002 MERCEDES W210 - E items in MIRACLE AUTO DESIGN store on eBay!
who sell stainless steel ones which are much better (and much dearer).

But if you don't want the car looking like an old Airfix model aircraft kit IMO that's the way to go.....