Help with removing rust from bare metal (pics)

[desert-rat]

So this is the current state of my cab. Bare metal and left outside. I'll explain more about that in another post. Upsetting story. Small claims court may be filed.
Anyway, it is a rough finish so rubbing a cloth across the metal left lint behind (close up pic). Not too bad though. Maybe I can still rub a cloth and use an air compressor to blow off the lint. I don't know.
But afterwards I still have to degrees it.
The pictures were not tooken sideways. Whatever.
LMK any ideas. Thanks.