Thanks to Andru B. for the link to this ad in Gumtree for a Baur in Tasmania!
BMW e21 BAUR 320 323 Parts and Wheels
"BMW e21 Parts for 320 and 323i including steel wheels and Genuine BBS wheels.13 inch."
We would have preferred more pics of the Baur parts, of course, .... and maybe we can more info on what is available from some of our friends ... Down Under! ;)
Thank you, Andru B.!