Audio Conversation Recording for native Tuscan. | Florence Interpreter for exhibitions

We need to record 200 hours of conversation in Italian mother tongue. A conversation between two people, which can last up to 2h. 30 to 35 $ For each cover or for each person? If it were per person it would be $ 60 to70 per conversation. 200h = 100 conversations 100 Conversations = 200 people.