I’m glad I found your thread! My son’s (Yale 2019) story has some similarities to yours. His story is here:
http://talk.collegeconfidential.com/admissions-hindsight-lessons-learned/1790192-elite-school-admissions-a-first-time-parents-stumble-through-the-game-with-no-playbook.html#latest
I think Yale would be lucky to have your boy. Of course, there’s no way to predict. His story has got to catch the eye of the admissions counselor who reads his file. Good luck. I’d love to hear how your son’s story ends up.