Don't be fooled. Delivered doesn't mean mission capable by a long shot. All it means is that the project is so FUBAR that the RAAF will take the aircraft and try to get the radar/mission suite to work while the crews fly the aircraft. They did the same thing with the AP3 and it a sign of how much trouble this project is in that they are willing to take delivery when Boeing has obviously underperformed so badly. Getting a sim delivered and doing some air to air refueling is the least of their problems.