The chains are sized by internal width and height and then bending radius. What you could do is bundle together the cables and hoses that you need to run to the z axis. Try laying them in a 2 layer formation, ie the two coolant tubes and the air tube on the bottom then the two power cables on top then measure the width and height then add at least 50% for "design modifications". Then just pick from the Igus charts. Igus does make good chain. We use it alot at work.