[CA11] Apelco 360 problem

Hello folks, these are pics of my Apelco 360 that has come apart & i am hoping that someone out there on this forum can tell me how to put this back together or what is missing. The 3 screws are missing from the slots but i don't see any holes in the black plastic block that is still on the transom of the boat.Is there something missing ? It looks like there was a tiny rod going through the holes in the blocks. Any info will be greatly appreciated ! Thanks

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