Just like the MRK+Line Robot, the SRK+Line has everything you have to build the robot, but you can add your own personal flair by 3D printing your own parts! The SRK uses the chipKIT MX3 board and Servo motors. This is in contrast to the MRK, which uses the motor/gearbox and the chipKIT Pro MX4.
The complete instructions on building the SRK+Line Following Robot can be found here.
Fellow intern Kaitlyn modified the MRK 3D parts for me (so be sure to check out her stuff).