Couple more pics. Got the shelves welded in, and that was a lot of welding. I'm still working on the top platform rails that I've decided to make them to bolt in instead of weld in. This will give me the ability to remove the shelves if I ever want to. If I weld the top platform in, like I had planned to do, the entire fixture would not be removable and it would need to be cut up to remove it.
Finally had a little time to work on this again. The basics are done except for one crossbar on the top bolt-in platform. I ended up a little short on the tube so I can't finish today and I need to figure out what to use for the shelf material. And I still plan to make some 45 degree gussets to help support the upper platform.