From the type of Gearbox and the fuel pump, that does look to be a 72 Export type, however it does have the wrong universal joints on it, unless it is from a Morris 1100S.
Yeap, that would have been the orginal colour at that time.
Terry, my 1980 Cali that I bought new from JE Allen was all black, but that's not the only one I've seen. It maybe that they came both ways?