Design plans for a massive renovation of the terminal at Lawton-Fort Sill Regional Airport are ready, meaning airport officials now will be looking at funding sources for the work … The total estimated cost is $10.7 million, with another $2.053 million estimated for additional work such as a break room for Transportation Security Administration (TSA) employees, landscaping, fencing, paving, a new floor in the meeter/greeter area, and road work.