The smaller, metal, pattern side lights (tail lights etc) often show up, presumably repros, on ebay as being suited to Harley Davidson WLCs.
Links seen today (I serched for "harley-davidson WLC light") - sorry for the long URLs...:
https://www.ebay.ca/itm/115165398743...Bk9SR8yXzJWQYQ
https://www.ebay.ca/itm/113853710129...Bk9SR8yXzJWQYQ
This one says NOS...
https://www.ebay.ca/itm/224853249697...Bk9SR8yXzJWQYQ