I'll be heading to Tokyo tomorrow for a friend's gig and was planning to check out the Tokyo Toy Fair in the morning. Apparently these guys will be there: https://www.warhammer-community.com/2017/05/31/space-marine-heroes-in-japan/
Not sure if they're selling them although (from what i read) they might be. If rumours are true, they're Y750 each and possibly a random marine in a sealed box (collector card style).
If anyone wants me to pick some up for them, let me know asap! No guarantees on if they're for sale or how may I can get (if any) or even the actual cost....!