oh i see i already have those right now on my a9lh except for BOOTCTR9. i will try that once i updated my 3ds.you may need luma for that game . . . but you dont have to give up your gateway to use luma
edit: i am simplifying here but that guide (roughly) suggest you create an 11.2 emunand (and use patches) for gateway (after you can update sysnand to 11.6 for luma)