I'll definitely do the keyboard, actually I'm using the breadbin keyboard here because I think it looks neat. Commodore were pretty good at keeping things compatible. The motherboard was intended for breadbin as well, but fits fine in the C case.
How do you like typing on it? I wonder if I dislike typing on my breadbin only because of the height of the case, and the position it puts my wrists in.
I find it perfectly fine and acceptable for long periods of time, I think the original keyboard is quite good mechanically (springed keys with conductive rubber feet onto pcb pads), the ergonomics of the breadbin (I have an ultimate64 and a few real ones) is not my cup of tea, it ends up hurting my wrists after longer sessions, no such problem at all on the C64c models.