When the car was in for it's last EGR recall, I ordered the "handlebar moustache" trim and a US-spec. 'plate plinth.
I have fitted the trim this morning. The plinth needs to be cut and plastic-welded back together because it's too deep, so for now I have stuck the 'plate directly to the trim.
The car is filthy at the moment, but when I've washed it I'll post a picture.