Hello Heliporto,
The big issue here is the theory, and has to be done in some freakin' way, just like whirlygig is saying. The flying is the easy part and up to the Head of training at the school to decide how much training is needed. And since the helis is flying in the same way all over the planet it should only be a matter of some hours to adapt the local style if one is somehow up to speed.. We did one convertion (flying part) last month together with a type training, total time 8 hrs + checkride..
fly safe..