Figured this was worth a post. The CPS2 Digital AVs are back in stock. Looks like they will get more if this initial stock runs out.
https://videogameperfection.com/products/cps2-cps3-digital-av-interface-diy-kit/
https://videogameperfection.com/products/cps2-cps3-digital-av-interface-diy-kit/