I need a Memory jog

Greetings folks,
I'm starting assembly of the 69 Dart (w/AC) and between all the time that has passed and the location moves, some items have gotten away from me (mostly screws and bolts so far).

On top of that I can't remember where some of the parts go lol.
For example the brackets in the attached images, I don't remember what they are and I'm hoping you all can remind me.

Thanks!
AlV