I've spent quite a few hours on the net exploring options for converting from Aussie to JAA and my outcome thus far is:
For someone in my boat.... ATPL 2000 TT, 1000 Multi Crew Turbine. (no experience in JAR designated Multi crew Aircraft)
It seems the cost of doing:
(a) the 14 exams by Distance Learning
(b) CPL Skills test (with 5 hrs training Just to be safe !!!)
(c) 15 hrs IR training and test
(d) MCC
(e) Travel, lodging, meals etc....
Comes to a sweet $40K Aussie
And I probably under estimated the travel costs etc.....