Candid and objective: if he is a rising senior/2016 grad (sounds like he is), at his size, he will likely need to be upper 80s to get D1 (even lower/mid major) looks unless he shows exceptional "pitchability", command and plus offspeed (that he can throw for strikes). Mid 80s RHPs of that size are plentiful. His mound presence will be a very big factor, too. If his grades are exceptional, that will help, too. He will have to be very proactive. Don't wait for schools to come his way. Also, you say he is "throwing mid 80s". That can mean a lot of different things, each of which impacts the level of interest he may garner:
1. Is he sitting 81-84 and touching/topping out at 85?
2. Is he sitting mid 80s (ie, 84-86 and touching 87/88)?
Story: last weekend, I was in Nashville at the Music City Classic. Was watching an ACC assistant coach with radar gun watch one of their 2016 RHP commits throw. He is listed at 6' 2", 190 and threw a ton of strikes but never exceeded 88 mph, was mostly 85-87. The coach and I had a friendly chat going (he knew where my son was committed, knew the school well and was discussing the campus, program). He proactively started explaining to me why they recruited the kid on them mound: "There are a lot of guys out there with higher velo and better stuff, but we just think he is off the charts with intangibles. I bet there isn't a kid at this event that has bigger balls than he does on the mound. We just love his make up."