I agree the paint looks pretty good except that cable guide. I might just run the cable and then put a wrap or two of cloth bartape over it (track bike style) but having it brazed off and replaced would be the 'proper' way to repair and I would think the fram can stand the heat. that is why in most peoples opinion brazed lugged frames are superior. the lower temp. nice looking frame is it a local brand I am not familiar with it.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk