Another forum member recommended these guys for the wires. He said they fit perfectly. They're about 50% or more less than dealer. I'm going to be buying a set there myself shortly.

http://www.ajusa.com/cgi-bin/kingsborne/start?make=Mercedes&model=280SL+Type+107&year=1985&cyl=L6+2.8


Kirk Vining
83 280SL Euro
84 Porsche 944