how can i buy a japanese imac that i can get in the u.s.

Hi IM considering buying a new imac, but I'd like to get the Japanese version. My only other problem is that I live in the U.S.. how can I buy a Japanese imac but ship it to the u.s.? or can I buy the imac in the u.s. and get it with the Japanese version of osx? Any help would be awesome 🙂 BTW this is my 1st post so sorry if I did this wrong