Sanusi SP-20,000 Rare Speakers HELP

I picked up this really nice set of all original high-end Sansui SP-20000 speakers from a local. They are in pretty good shape and work other than one of the mid-horns is dead (T-141). This is beginning to seem like a frustrating issue considering I can't find a replacement mid-horn for sale anywhere. Does anybody know where I can find a replacement T-141 mid-horn.
Also all foam is intact on the woofers and radiators, is there anything I can treat it with to revitalize it or condition it. I'm sure I could refoam the 10" woofer but the radiators are unique and haven't seen any refoam kits that would suite them.

Any help is appreciated.
Pictures at link below.
https://audiokarma.org/forums/index.php?threads/sanusi-sp-20-000-rare-speakers-help.884021/