Back then Tetenal offered their "Tetenal Neofin Color", for films like CN-17. As one-shot processing that should do well with CNS.
Neofin Color was offered in ampules and those seem still to show up sometimes.
But with that old film don't expect too much.
Ah, I'd forgotten the Tetenal chemicals in sealed glass ampules, which you broke off the stem to open. Neofin Blue and Neofin Red. They had a reputation for lasting "for ever"! (Makes me feel old. )