Sorry for writing to you. I wanted to give you a suggestion. You can get raw scans from the ‘123hon’ website (e.g. in the case of the manga ‘Tsundere Hokuou Bishoujo’ that you are translating) by using F12 on your browser and copying the URLs, avoiding severely damaged halftones with methods such as screenshots. Unfortunately, the downside is that the images are divided into three parts, and the URLs are not in order. Obviously, in the case of a special script via ViolentMonkey, it would be much easier... if there was one.
I don't think you will use this method as it is slower, but in case you need it...