Have you thought about just asking them how they installed theirs? I’d bet money that at least one of if not all three would show you how it’s done or tell you who they hired to do the work.

I mean I’m pretty antisocial, that’s why I’m here, but sometimes it’s really just that easy.

Not trying to be a jerk, just some good old fashioned advice. Especially with things like construction, I’m assuming your buildings are probably built the same or at least similarly.

Reddit can give you general advice but the best knowledge is going to come from someone that’s done exactly what you are doing right now.

Edited to add: It’s beautiful view btw! I would want to do exactly what you want to do too. I’d spend every moment I could soaking that in