As you might have gathered, I would probably not put The Ultimate Additional Japanese Resource List as something implied as something to do once reaching level 60, after all, you should get started on the stuff in that thread as soon as you’re capable really. So, it’s more like a parallel track to WK I think. 
I do think this thread, AND the Ultimate List should cross-reference/-link, to help navigation and finding each of these great resources. 
I’ll suggest it!