Likewise I replaced my w123 steering wheel with a leather wrap classic NARDI and corresponding hub many years ago.

I end up using the KM markings for easy speedo reading since the MPH is slightly obscured along the top.

Bought mine on ebay long time ago.

patiently search and you will find !

__________________
1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD