Tyler, there’s already been an Ultimate Nomad Enclosure so yours will probably need to be the Ultimate-r Nomad Enclosure (shades of “The New Originals” from This is Spinal Tap…)
I’ve also followed the sound-damping enclosure threads --Mark originally described his extrusion-framed enclosure in the Custom Enclosure Zoo thread
Myself, I wonder about aluminum’s lack of internal damping itself. Since the enclosure isn’t really structural at all, I’ve thought about the light-weight pound-the-junctions-in kind of aluminum extrusions, which could have expandable foam squirted in, or just furniture-padding kind of urethane foam poked in for damping of the frame itself. Hinges and things could still be attached with sheet metal screws–the self-drilling kind used in metal-framed house construction would be convenient… I actually used that kind of extrusion once for an enclosure at work a long time ago in a state far, far away (California…) And it hasn’t occurred to me at all that custom junctions could probably be easily designed and FDM-printed. And as much as I buy stuff from McMaster-Carr every week at work, I will not even point out that they have downloadable STEP files of all the standard junctions…