Great answer!. Thank you very much.
I looked up transmission gates definition, and it seems like perfect
solution to the problem. I found on the Maxim site DS3690 IC which
seems like a good choice for this task. It features 26 A/B switched
parallel channels.
That leads me to another question - which lines of CF card would
need to be switched ? Would 26 channels be enough to handle data,
address, and control lines, or that would not be necessary to switch
all of them ?
My interest in hardware extends from coding side, so please excuse
me if I am asking a trivial questions.