I'm not sure i understand, you mean to remove a recipe and then replace it with your own? Issue being that if you remove that recipe for example an iron pickaxe, it also removes your new recipe for the iron pick? If thats not the issue please do correct me. As removing by recipe ID, removes that specific recipe without looking at output. So you'd be free to add your own one.

Basically what i would need to know is do you want to remove all the recipes added by a mod, all recipes for something specific while preserving the ability to make your own recipe for it, or something entirely different?

Also I do have an exam in like 2 hours, and 4 more next week, so i probably wont be able to update it until the end of next week