Let's see, trying to address the questions.
I am not sure if I'm willing to commute for day school setting. I would consider that for a semester to see if he adjusts to the setting. We're in a rural area, nearing town is 20 minutes, so around here 45 minutes isn't a terrible commute.
He can be super independent, however he's not reliably responsible while being independent. He can hold his own better at community college campus than in elementary. He has no age peer friends. He had friendly acquaintances at the communicty college - a senior alternative student, a 16 year old dual enrolled high school students, and a couple of my classmates. He would chat up the professors and find people to play chess with. (Note that he was supposed to be doing his online schoolwork.....)
He was formally accelerated 3 grades by the school district at the beginning of 2016-2017 school year, so he could access a loophole that would allow him to take high school classes for credit. The virtual school network classes were disappointing, less rigorous than his middle school level textbooks.
I know the school caters to accelertation with dual-enrollment and that the majority of students are international. The school has strict classroom, hallway, transportation and dorm rules, including no PDA. I am perceiving it to be a socially safer situation than the local public high school
Thank you for suggesting additional questions!