A new boom has been ordered (at Airbus's cost) to replace the one at the bottom of the Atlantic, but there is no money for a sixth KC-30 for the foreseeable future.
F/A18, you are quite correct. The prototype and test aircraft, A39-001, is still in France for delivery this year. A39-005 is with QDS in Brisbane undergoing mod, and to be delivered this year. Other three with 33SQN at Amberley. No money for an A39-006!!