At least somebody reads my postings :-)
Lots of people do, you know :)
I really don't want a separate box either.
Why not small enough to be put on the keyboard? Do it with a SMD IC :)
cover) to allow the ribbon cable to exit, and 4 3mm
holes on top. These
could be filled and painted over, or used to attach a nameplate, or
something if you wanted to reverse the mod.
I like to put 4 screws on the board with 2 nuts each, and glue the
screws with epoxy on the box. It make nice 4 studs for the board and is
completely reversible. And you see nothing from the outside :o)