Joe, sounds exciting! Why panels and not a larger Magico's e.g. M6's? I'm always curious about panels vs. "cones and domes", even very special ones like Magico's
On acoustic treatment you may also want to look at DR Acoustics in California. They make brilliant solutions, mainly found in recording locations and in my interior designers view high brow functional design. For bass absorption take a look at the PSI active bass absorbers, also from the pro audio world. I recently worked with them and there is nothing like them for performance and best of all they are barely visible. FYI, Ron Resnick uses them in his listening room.
I look forward to following your thread as your new home project progresses.