Lengthy Verbatim Interview Transcription Needed

I have a 5 lengthy audio file of an interview that I need transcribed. It's around 5 hours long and I require a verbatim transcription, which includes every spoken word and background sound.

Ideal applicants should have:
- Experience with transcription, particularly with long audio files.
- Strong listening skills to capture every word accurately.
- Proficiency in English with a good understanding of accents and speech patterns.
- Excellent grammar and punctuation skills.
- Ability to maintain confidentiality.

The project may take a considerable amount of time, so I would prefer someone who can commit to a quick turnaround. Please include your estimated delivery time in your bid.