The guidance counselor can explain scheduling conflicts to colleges when they send the transcript.
It seems that either stats or honors English could wait until next year.
I would ask, what does your son want to take? What is he interested in? Rather than what the colleges will think. And the GC can explain anyway. He is way ahead in math anyway,
He could also take a class online. We used this school when there was a significant conflict, and our school was so impressed that they joined so that 2 kids each semester got to take a class. VHS Learning | VHS Learning
To me this seems like a lot of AP’s, and a lot of advanced math well ahead of the norm. I would also think about stress and burnout- I’m sure you are.
(Edited my post to be relevant to large publics)