This is a pretty specific need but, hey, it's the bulletin board. I have some orphaned wire shelves that are in need of legs/posts so that they can become my garden nursery for the year. If you have legs or complete shelves that might work, reach out at (801) 675-1889.
Here's what I'm seeking - I'm pretty sure they are compatible across brands:
https://mobileimages.lowes.com/productimages/7b72ecf1-59e9-44b6-a30e-957bad4a1bb5/61731698.jpg