All that is needed to my understanding to have this completed for the OMR is to get the cables generated for this model which is something I don't have the skills to do. The motors cables have already been created and are used in this model in the link below. The 4 sensor cables will need to be generated for this model to be complete.
http://omr.ldraw.org/files/1711
http://omr.ldraw.org/files/1711