Here is my welder cart that was a parts cart I had around. I have modified it to hold all the cables and accessories, along with the bottle mounts. When I get a chance I will be wiring it so that I have all 3 machines on one power distribution box. Then only one wire to wall. I used 1" square tubing to make the stand for the bottles with 2"x1/4" flat strap to hold the bottles. Also used 3/8" chain to hold bottles at top. Then 1/4" steel rod bent to make the cable hooks. Click image for larger version. 

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