Child Craft Baby Crib Mattress Frame Parts

I’ve been trying to track down a Child Craft crib mattress support part and haven’t had much luck so far. The piece I’m looking for is the angled metal part that connects the mattress frame to the sides of the crib.

I did reach out to Child Craft using the contact information I found, but I was told the company has been sold and they no longer provide replacement parts for older furniture.

While sorting through the different part names and hardware types, I found this page helpful for general reference:
Child Craft baby crib mattress frame parts

I also checked eBay, but I still haven’t found the specific bracket or support piece I need.

At this point I’m mainly trying to figure out whether anyone has found another source for older Child Craft mattress frame hardware, or has run into this same problem and found a way to identify the exact part more clearly. I was also curious whether the parent asking about Child Craft Legacy crib parts ever had any luck.

If anyone has dealt with this kind of Child Craft mattress support hardware before, I’d really appreciate any information you can share below.