Mine was free at the time too. But for the sake of arguing, advising someone that is willing (I assume) to spend anywhere from 75-250K for a restauration, to save a few bucks on a data card that is essential to the history (or birth) of his card and shows all the options, colors ...... does not make sense to me. Also, should one ever want to sell their car, its probably the first thing a potential buyer is looking for.
(Yes, if you are familiar with the MB colors, you can probably guess the correct color code on some hidden panel)