Wanted - heat exchanger tube end stops

[StevieTerrier]

Hard to describe what this is! The tubes that carry the heat exchanger operating cables fit into a bracket at the rear end. They are held in place in the bracket by a plastic clip / end stop. Inside this clip is a little plastic cap which acts as an end stop for the outer cable. Hope that makes sense? Well I need two please if anybody has any or is breaking a bay. Or if anybody knows if anybody does them new? Not sure if they are early, late or universal? Hopefully this might help.... thanks Sam