Need help with original bed cover

[kman.45]

I only got a couple pieces of the original cover from the PO. The actual cover, most of the mounting bracket, and the two big screws that attach the cover to the bracket. As you can see from the picture though, I am missing the left side brackets that attach the cover bracket to the bed (right side pictured), I'm guessing a screw in post of some kind for the front half of the cover, and I'm guessing some kind of little side covers that go in the corners?

If anybody with an original cover can look and see what other things I might be missing, let me know, if anybody has a guess as to where I could begin to find the brackets and such, let me know too.

Kyle