You might like to look at Flying Off Course by Rigas Doganis.
Operating Costs are as much a function of the aircraft as the airline (ie their salaries, efficiencies etc).
In his book he quotes BA's costs in terms of escability. In this he shows that Aircraft Standing Charges (which would include leasing) made up 14% of the total costs. This would imply from your numbers that the total cost would be around £3500 per hour.
In his BA's figures the other costs included:
Other fixed direct operating costs:
Crew salaries and training, fixed engineering costs, passenger insurance
Indirect operating costs
station costs, ticketing and admin, depreciation of ground equipment
Variable operating costs
fuel and oil, crew expenses and subsistence, variable engineering costs, airport and navigation charges, handling and parking costs, passenger services, cargo
You can argue about which are fixed and which variable and the level of each will vary by size of airline and location.
So that should give you an idea that a genearlised operating cost is just that, but you need to take account of local condtions.