Hello please see my profile,
I can extract the back ground noise & give you a clean seperate voice track and a seperate background audio track in AIFF/ Wav/FLAC formats as required.
You can then control the vocal levels & use minimal ducking if required at the edit.
Also, I will clean-up, edit, EQ, compress & master the soundtrack to broadcast standards and can complete it today.
I can do a free demo if you can send me a clip of the audio.
I run a pro studio & have 20+ years experience in audio production & restoration, Thanks Carl