I've started work on the case again and will print another in CF and will glue on some thin aluminium panels in recesses in the CF.
I am making plates for connectors that bolt to the chassis. so far only 2 plates , 1 for the mini XLR inputs / outputs and 1 panel for the AES IO mini XLR and 1/4" headphone sockets.
I made some slots in the digital and analogue main board mounts so I can slide in some EMI shielding between the 2 boards.
this is a very rough 3d thing of the assembly. you can click to make a cutaway.