well if some shop can make the wires then so can the op if he is mechanically inclined. Go to the junk yard ans find a set of wires from a similar car and strip it down to see how its built. then go and buy the materials and make your own. I did this when I could not find any non-resistor spark plugs. I ended up making my own from a set of resistor plugs.

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1990 190E 3.0L