Relays finally arrived, and now it's time to start build the computer!
I bought around 60 of them, hoping even to spare few with 8bit implementation... In reality I might spare even more realizing at least the first version with 4bit word lenght: easier to assemble, to debug, and anyway reaching all goals of the project, and "expanding" it later. I will decide building it. Anyway the design allows for the word to be any multiple of 4bit (e.g. 8, 16, 32 and even 64 bits) since there is no delay accumulation increasing the word size.
The relays number in this moment do not account for the memory. For which I will probaly buy a different type (trough hole) for easyness of assembly with condenser (if the current design will work).