Default Battery cover for g2 docomo

Hi guys so I have an LG G2 DOCOMO L-01F/DS1203 japan version not to be mistaken with the Korean version DSF320 or the other G2 Isai L22. Now my problem is where can i find the battery cover/door for this phone? I doubt the above mentioned G2 variants including the usa and international ones would work because mine has the tv antenna thereby making it differently but slightly shaped towards the top left corner where the tv antenna is located. Thanks alot