Sketchup of loft control room. Advice greatly appreciated.

I have a loft area that I'm converting into a control/listening room. It is the end of a hip roof building, so there are some angles and rooflines that I haven't seen here a lot. I've tried to apply a lot of the things I see working for others. I am thinking about building a superchunk trap in the top of the ceiling peak. I have a false ceiling shown, would it be worthwhile to hang some baffles between the false ceiling and superchunk in the peak? Should I go full absorption or slat trap between the speaker soffitts? I plan on making the back wall pretty much absorptive. Monitors are Mackie 824's. How's my monitor height? Please excuse my sketchup skills (or lack of). It really is a fun program. Thanks for any ideas/ advice in advance.