Well, I did read this for free, so I can't be complaining too much. You also did mention that you're not fluent in Korean, which might cause mistranslation, so thanks for mentioning that. The thing is, sorry if this sounds rude, but it seems like you're not really fluent with english either...? I'm also guessing english is not your first language, so I kinda get how hard it is for you, as english is not my first language as well. Hell, I'm sure I even made some grammar mistakes in this comment as well! The point is, even if you mistranslated the Korean, at least the reader will understand more if your english sentences are better.
What I'm suggesting is for you to get a proofreader to help. Maybe you can set up a discord server or something, so people that are willing to help can join. Who knows, you might even get somebody that is fluent in Korean so that your translation's quality will be even better, or even start your own professional translation group or something, that would be cool. But of course at the end of the day, it's your choice to take my suggestion or not. Sorry if I'm being rude, and thanks for your hard work!
Somehow I can't post my lengthy comment on my original one, so I guess a reply to that will suffice
Thank you for the upload