After a very minor and silly issue involving a muddy yard and a fence post, my awning frame on my 22MLE got damaged. I originally thought it could be repaired but the flimsy metal actually broke! Seems impossible from such a minor hiccup but the whole arm/frame needs to be replaced, unfortunately.

What is my best course of action to obtain the part so I can replace it, please? Is there a preferred online parts dealer I can contact to buy this?