Hi, I am a native Korean translator who loves manga.
I have a decent understanding of Japan and its culture since Japan is like, right next to our country. Better yet, I have been working on a similar project translating Korean webtoon into English. And my schedule is not busy most of the time, so I reckon I won't have much problem being quick.
The downside would be that I haven't read the two mangas you mentioned, so I might have to catch up.
If you think I would be the right man for your job, please contact me.