I think this thread has been hijacked by Point Cook real estate agents.
On one of my later visits to the Point Cook Museum I came across a 70 year old experienced machinist working on a V12 Merlin engine fabricating replacement engine parts for free. In conversation he mentioned that the exhaust valves used by the Merlin are hollow and filled with sodium as a cooling agent, and should you ever try to cut through one then it will probably be fatal. A font of knowledge and experience lay before me that was part of a skilled team keeping this museum and its exhibits in a state to be enjoyed by many.
If the RAAF does not appreciate this then they are doing themselves a major disservice. Sure you can have all the money in the world and do whatever you wish with it, but what's the point if you have no friends to share the experience.