I am selling a MOMO Steering Wheel hub Adapter from a W123 E-Class for $50
I can't gaurantee it but my research shows that it will also work for the following Mercedes Benz models:
(W115) 80-Up; (W123) 77-83; (W124) 86-93; (W126) 81-91; (W126C) 81-92; (W129), (W140), and (W201) 84-93
PM me if you're interested in it.