Attic Control Room..

Hi everyone, we're building a studio on some sort of a farm. And while the recording rooms are quite nice already, nothing much to do (or so I hope), I'm finding myself playing around with the control room all the time. Now I got a functional idea, and I thought of it like this: The problem is, since it's an attic, we have two droops coming from the roof. It's the two thin black lines in the picture, that go down from tho top of the pic to the bottom, they show were these ramp-like walls start from the (even!) ceiling. They don't touch the floor, but hit a vertical wall, that now has 0,85m to go to reach the floor. It's the same at both sides. In the middle part of the picture, inside the two lines, there's an overall room height of 2,88m, a plain ceiling. This is, because there's a another level atop the control room, with an even floor. In the middle of the control room are two roof beams, which look like a heavily biased "V" upside down. We plan on putting acoustics in between the bars, though we don't really know what, yet. When I stand in the control room and clap my hands, I get terrible long echoes (nearly 2 seconds). The room is empty at the moment, but it urgently needs some work in the acoustics-department. Some questions..: 1) is this way of using the room acceptable? 2) what type of glas is recommended for the vocal booth (and the recording room, that is to be build at the bottom of the picture), and how thick should that be or how many pieces of glas should there be? (Especially also a problem with the rain, pouring down on the windows and making low drip-sounds, how can we best prevent that from being too loud? 3) is it a good idea to hang the ceiling over the area around the sweet spot? 4) how can we prevent wood cracking from the floor in a not too expensive way? 5) and generally, what would be good actions for soundproofing the risky parts of the room? Thanks anyone, for reading my post, this has already been a real helpful forum to me. Any thoughts appreciated! :D Sincerely, Christoph