Looking for just the top piece, the piece that is circled in red.

Any condition or brand is fine. I am looking for 3 or 4 of these. For some reason, I have several bottom "L" sections, but no tops to match.

I don't want to get a complete assembly online, because then I'll still have several bottom sections with no mates. That's what I'm trying to avoid.

Thanks for your help,

V