Step side bed parts. Crossbars. What goes where?

[sircrunch]

Bedparts https://imgur.com/a/TecYaj2

Does anybody know the order in which these go on the bed? As you can see I have a step side bed that is assembled partially. In the picture it's upside down and I have the rear cross bar in place but the other 4 I have no idea. It looks like 2 of them are the same and one has the mounting points a little further out and 1 is much smaller. What order do they go in? If anyone has pictures that would be great because I have no idea where they mount or anything. See the link above for pictures