Question on charter flights MEL-HIS

[uspl]

Morning all

I have some long service leave due in September that coincides with a major wedding anniversary.
For something super special I was thinking of a week at Hamilton or Hayman and going all out with a direct transfer from Melbourne via Citation / G-IV or similar.

Can anyone enlighten me as to potential charter costs for a return flight, shared or private ?

Thanks in advance.

 

[serfty]

Congratulations on your anniversary.

As for the charter, it's outside my experience.