Yes, attending the PBR in order to get verifiable measureables and videos, in order to send to coaches, is a smart move. (In my opinion)
I wouldn't sweat the college far from home thing. I have a 27 year old son and a 16 year old. Typically when kids go off to college, you'll be lucky if they spend summers with you in their freshman/sophomore years (less likely for ballplayers as they'll be playing summer ball somewhere). After that you'll see them for a week at Christmas, or even just a few days, maybe they'll spend much of winter break with you, but even then they aren't exactly sitting at home playing Yatzee with Mom & Dad. They'll be out hanging with friends and/or girlfriends most of the time. It is tough, trust me, but it is just part of growing up. And it doesn't really matter if they are an hour away or 7 hours away.
Encourage them to attend the school that is best for them, that will set them up for life. You won't regret that.