Here is another kit that turns your door into a full gym. The Lifeline Train Station comes with adjustable resistance point, so you can change the angle for upper body, core, and lower body exercises. The cables you get have a total resistance of 60lb.
Each cable acts independent of the other. With this kit, you get two R3 resistance cables, two max flex handles, and interchangeable wrist/ankle attachment. Two height door straps with cable pockets are also included.