Ok, you have all the main panels there. The two that have those little doors on them, one has a perch attached and the other has a lock on it in pic #1, those are the side panels.
The main door is the 2 panels in pic #1. The one on the far left is one side and the one next to the base is your other one.
Now, in pic #3 there is some sort of rod thing. My guess is that it belongs on the door maybe???? If the guy did not mention anything to your cousin who picked it up as to where it goes, don't worry as you can send the pic to Trisha and she will be able to tell you what that is for.
The wheels are off the base. Did the guys take them off? Do you have them?
The plastic tray type thing that the paper slides over is missing along with the side guards but you can get all those replacement parts easily.
Rather than using locks on all the doors I highly recommend ordering the rods that you just drop in that slot. A heck of a lot easier when I converted over from using the locks and having to deal with keys and then when the lock on the door where the water bowl was and Jody would take a bath in her bowl and eventually that lock would stop working. Tricia sent me the extra long Macaw size and Kalea has yet (knock on wood) to be able to remove it.
You got a steal and am happy that you got it. If I had been able to get ahold of the guy again, making sure of the size of the cage and all, I would have gone out there, picked up the cage and continued on and picked up a little birdie that still might be coming here.