Some useful mounts and cases to adapt to a breadboard and make wiring easier. I assembled everything on a 6 mm wooden panel.
My breadboards with SB-X plugs are from Reichelt-Electronik (https://www.reichelt.de/breadboard-2290-contacts-steckboard-sb-4-p139509.html?&trstct=pos_15). There are different types with a large variation of contacts available. All can be combined over the plugs to one large breadboard.
There are cases and mounts for commonly used add-ons:
Have fun with it!