Steve,
I can't tell much about your wheels from the lo-res photo here, but the wide shot looks good. With the dark color they seem distinctive without being gaudy and were certainly a period style touch.
Phil, if there is a 13 mm spacer, how many miles will it take to wear out the bearings? I wouldn't race with wire wheels, but for a car that gets 1,500 miles a year, it wouldn't seem a big deal. I've put 33,000 miles an '89 BMW with alloys and spacers and no issues yet. It could be that the wires and spacers might reduce the useful life. Admittedly, the rear wheel bearings on that E30 will be far easier to replace than a W113. I just don't know how fragile MB bearings are. At 180,000 miles, I replaced my Pagoda's rear bearings as a preventive measure and they still looked servicable.