Very good info, thanks for the reply!

Since there is no crew rest area in the 76, I'm guessing you normally fly with 2 pilots? And max day must be around 12 hours or so?

Also, how about the difference in the cockpits. I would think that the 767-200s and 300s are older and not glass? Vs. the 747 are almost all updated correct? Difference in comfort / how loud in cockpit? I saw earlier in this thread that the 767 freighter sounded like a train inside.