rkauer, ok you mean I can then use an A2000 keyboard then? I saw some postings in the past about that.
Does the A500 keyboard fit in the A2000 plastics?
I was originally thinking to put the A500 keyboard in those plastics

and wire the leds and signals back using a db25 connector, something like the 128D keyboard.
I have an A2000 keyboard but it's damaged heavily, (missing caps, rubbers, springs) but plastics are ok.
Thanks for your meaninfull info!
---------- Post added at 20:18 ---------- Previous post was at 20:11 ----------
oh sorry, small addon I've ordered a lyra for my A4000, since my A4000 keyboard is yellow as yellow. I know all about the restorating plastic stuff from here, but wan't to have a perfect A4000, it does not need to be original. (i need a small profile keybard for it to, small desktop space..)
But for my A500 tower hack the keyboard plastics will be painted my theme is industry red and white for the case.
So can I use the A4000 keyboard as well? The key's are reasonable, the outer plastics will be painted industry red.
(then I would keep the A2000 keyboard with it's system in stock)