Is it typical to reconfigure airframes into freighters when they get old? I would have throught that freight ops would be much arder on an airframe than pax ops anyway. Very heavy take offs every time, heavy landings every time.
Is it finacially worth the structural worries of modifying an already fatigued airframe to operate in that environment while it's late in it's life?
It's not just a case of pulling out the seats and dropping some plywood down on the floor is it?