Russ - re end caps, remove and prep for paint using a plastic compatible spray.
Rob - is that a 10ft awning? It looks LONG!
FrontmanAdveture - If you are considering a brand new unit:
I have two brand new F45s 10ft Black case awnings in inventory in SF, another couple in inventory in Long Beach. $1300 each.
I also have Ford Awning Z brackets in stock. If you need the original SMB brackets, I have a set you can have, they need to be sanded and painted.
What was rusted ? Pretty much the whole unit is aluminum.