I just ordered the MK472D/A (german) model. Apple iMac 27.0 Retina 5K Core i5-6500 8GB RAM 1TB FusionDrive Radeon R9 M390 2GB - (Late 2015). Ordered on Friday Nov-13th, still waiting for shipping confirmation. Anyone have any experience with notebook.de for ordering Apple stuff?
As an expatriate from the United States living in Europe it was really my only affordable option. The keyboard is going to be strange (QWERTZ), but I can just map a US keyboard in OS X and pretend the Z is a Y. ;-)
I'm going to wait on the RAM upgrade and maybe getting the Magic Trackpad 2. If I ordered the English international, or US version of the iMac (MK472LL/A), swapping the mouse for the MT2, it would have taken 5-6 weeks for a special order. Couldn't wait really.