Hi Peter,
I'd be very sceptical re the Budget amount set aside for the cost of the search.
Costs of the military exercise, are already part of the military budget, and the only extra cost, over and above normal operating costs, (as they are standard no matter if sitting on the ground or flying for personnel and equipment), would be the extra fuel to maintain the increased flying hours required, and is only a small part of the yearly budget.
This is simply a political/accounting ploy to justify whatever the politicians are trying to achieve.
The costs of the aircraft, personnel, and ground staff, are part of your existing military budget, and occur on a yearly cycle. So, I would be asking what is this $89.9 million in the budget really being used for.
Be thankful that your military resources are being used in a positive way.
cheers