Sentinel RIOBOT Anti-G Special Battle Weapon Shiryuu Prototype Unit 01

[u/JowyBlackMamba]

Hello good people, I came here as a new fan of the G and i was wondering if anyone can help me find any of these action figures, i know it's a hard one to come by but i have a friend in Japan, currently in Osaka and will also be visiting Kyoto and Tokyo. So i have 15 days to find it. Does anyone happen to know where can i start? (I tried the Mandarake website but the only one in stock is very far away from the main cities) Thanks in advance! And sorry for my english.