This is how i always did it with my 1k. All you really have to do is hook up the spidif output of your mpc to your spdif input on your soundcard/interface. THe spdif output plays exactly the same thing as the stereo outs. So, you are going to have to mute tracks and track out each track individually.
The only problem, which is minor, is you can't just adjust volume by a knob or slider on your mixer. You have to adjust the global volume on your mpc. No big deal, it can be tedious when somethings are very soft and some are clipping digitally without changing anything. Then you have to set the volume for each track and remember to go back when you are done. Simple but i've seen alot of people think they are having problems because it will be clipping and they don't know they can turn down the volume.