I picked up one of these from Amazon:
https://www.amazon.com/gp/product/B075F9MDV1/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
That seems to work. The only issue I see going forward is the load rating - 50# ea for the bottom 2 shelves, 130# for the top, and all particle board (not even plywood).