It is high time I had gone to look for a suitable box to be the case of the FunCPU. I have decided on the one below. It is quite ugly and girlish actually, but it was the cheapest option.
At least this will be the choice for CPU-case of my first attempt to build the CPU.
I expect to implement all functionality using 5 or 6 modules. Each module will be implemented as a single board. These boards should fit into this box.