I got tired of sorting all of the components for all of the modules so I decided to start building and testing the power supply. I seem to have been successful as all the voltages were correct.
I decided to use an old power connector for a IDE harddrive to be able to disconnect the two boards instead of mounting them permanently to each other. My reasoning here was that I would probably break the solder joints when moving the boards around while building. I´ll probably replace this with a cable of proper length later on when mounting it in the case.