I would second @AutoDidact on this. Just create a specific thread for the CC4 to C4D workflow under Pipeline—CC4D Tools is supposed to help with the CC4 to C4D pipeline after all (as I did here).
As you mentioned, there is no subsection specifically for C4D in the Pipeline category, and I don’t expect there to be one any time soon. C4D does not get the same kind of love other third-party DCCs receive (either from Reallusion or from individual developers—maybe that’ll change).
Just be sure to add the “cinema-4D” tag to the thread. 