Bill,
IMHPO,
From the looks of the pictures, this damage/rust is a piece of cake.
If you have all the correct tools, and a little patience, and a case of
beer, you could knock this rocker job out in a day----Max.
And I'm talking painted, in one day.
Two days, if your going to rub it out also.
NBD!!

Later,

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Terry 85 GL