Oooook, just a general question so was not sure all that info was needed.
But seeing that you do need it, here's a random scenario:
Ad Hoc Charter, Cargo operation
Long Haul
747 Classic
In house Line maintenance with heavy checks out sourced
1 Trip per week, 8-12 hours flying per leg
Operating out of 1 base to varied world wide destinations (ad hoc)
anything else required?