Drawers, drawers, and more drawers. Too many of the purchased carts are just shelves, usually just one or two, but none of my welding gear goes well on a shelf. Besides, my shop gets used as much for painting and carpentry as welding, so anything not in a drawer is covered in some mix of sawdust, overspray, grease, or some mix of the three.
Best are home-made, buy a nice toolbox or drawer set, and adapt it to your welder. But in a time crunch, I bought this unit for my most recent welder, and I like it. I wish I could have bought their taller model with more drawers, but as you can see, my preferred storage location came with a height restriction. Bottom drawer is only big enough for ONE helmet and glove set, I have to keep the spare helmet (kids) in another location.
It's plenty sturdy, once you put the weight of the welder and bottle on it, but wasn't cheap. I think I paid more for the cart than the 2nd-hand welder itself, but it got the job done at a time when I was too busy to build one. Brand is Blackstone.
If you have time, I'd buy a mid-grade hip-height toolbox, and bolt or weld my own bottle rack to the back of it. Would likely want to relocate the rear casters for stability, so bottle weight isn't cantilevered behind the factory castor mounts.
