manual to auto swap????

i have searched and seen the auto to manny swap but my 72 demon had a manny in it and was swapped to a 727 with b&m shifter with a cable...i am trying to put a floor shifter into a manual hump...if that makes any sense...has anyone done this and if so what kind of mods did you have to do to get the coffin case to work.. look right and shifter mounted to the hump