IBM 7014-T42 Server Rack Side Panel Bracket

This is a replacement piece of the IBM 7014-T42 server rack. It holds up the side panels.

I recently acquired one of these racks that was missing this piece, which made it impossible to put one of the side panels on.
However, when looking at the IBM parts diagram for this unit, they did not label what this part was (simply that it was part of the frame) - and I was unable to find anywhere to purchase a replacement.
So, I took it into my own hands to design a replacement.

This is a drop in replacement and is sufficiently strong enough to support the weight of the panels - additionally, it is not visible from above so the color does not matter.