It's missing a few screws (like its creator), but the frame for mounting the boards is largely complete:

Each 'cell' in the frame can carry a 177mm wide by 275mm high PCB. The inter-module wiring will be run along the interior sides of the beams, and the logic modules, memories and operator interface will face the exterior.

Here are a couple of shots illustrating how the module panels are held in the frame:

There is provision for a top and bottom cross-beam to give the structure extra rigidity if I decide it needs it: