I have designed several cat. systems. They're hard to build because the scale sized metals are too weak so you resort to larger unscaled metal that looks too clunky. Using my 3D printer I revised my Pitt-Mark system with additional parts to make it look better.
Your system is very close to the look and feel of an actual cat. system but it's big and the metal rods are over-scaled. Honestly it may be the only way to do it.
