I don't know about the W126, but the Porsche 928 guys use Keys4Classics in Australia. Send a hi-res photo and it arrives 8 days later.

I have used them myself, highly recommended.

__________________
1990 560SEC
1988 300SE
1978 928 euro S engine, big brakes, and more
1996 Suburban TX shark rig
1988 Suburban Pacific steelhead rig
1992 300 TE (recently totalled )