Mostly build specs, like internal volume, with and without spacers, corner brackets, standoffs, etc., external overall volume, with and without legs / stubs, etc., dimensions, aluminium alloy used, sheet thickness, rigidity, flexibility, weight, anodising method.
I tried accessing your website, but it keeps stating it's under renovation from last year.
I really don't want to be troubled to fabricate my own case, if it can be easily be made by someone else. Unfortunately, my design is a bit specific on the details, hence I have been looking into building it myself.
Maybe I can either draw on paper and share it here, or mock something up quickly on FreeCAD and share it.