Hello.
I am looking, or suggest (to build a file), a “dummy head” for stereophonic recordings.
It seems, for best results, are material like skin, flesh, bone and brain are needed.
Perhaps plasticine, wax etc. Filled in printed cavitys.
And a internal skull (massive).
Detachable Ears (it seems, perfect is “silicon”) for insert binaural microphone capsules or ready stereophonic real-head-microphones (in ear) like Soundman OKM-II or .