What Alan said is pretty close to what I was told. Not a cheap exercise.
I am going to the States next year to buy one but I will be sailing it back as an adventutre type trip.
I expect to spend big bucks making it seaworthy etc and if I sell it here I probably will break even. (But it is the journey, not the destination).
If you get this months CRUISING HELMSMAN(Aust. version) it has a story on the costs etc.