Hi! I don't if you still need help but I am in kinda the opposite position as you I've been translating Shoujo, Yaoi, and Shounen-Ai for many years and I can kinda typeset but I have tons of Manga that I've purchased that I don't know how to download the online purchases so they can be cleaned in order to be typeset. I also have no idea how to clean. So if can help each other it'd would be great.
Yes, that’d be great! I don’t know how to download purchases though. I usually just take screenshots and clean them on another program^^