Thank you everybody for your replies. what i understand is that:
-it might be nice to fly a converted paxcraft on long sectors (thx, GBALU53)
-it is better to fly for a non-profit organization, for you have a galley and all it takes in your cargo compartment (thx, mutt)
-you better ask your girl to do you coffee and sandwiches before you go to work (thx, Daysleeper)
I think you cargo pros are doing quite a job !