JW411,
you are right that tu204c is flying with 6-7 crew, but you haven't catch the point... tu204c has a flight deck crew of 3 (capt/fo/fe), others are loadmaster and technicians, because there is no line maintenance facilities for tu204 at the TNT stations... if you want to bring 747-400F to dark Africa for operations, you will also need a crew of 10 to make a line maintenace there...