Mate of mine just ordered a factory reman engine for his Cherokee 180 at YRED through the Aviall/Lycoming dealer (based in NZ) and it came with a new case and roller cams etc. Significantly improved engine over the core he is returning. The returned core is sent to Sydney and then you get your core deposit back. When there are enough cores to fill a shipping container the whole lot are shipped back to the US. The main point though is you are only shipping the core as far as Sydney.