I guess if in the mood I'd probably go as far as masking but I usually just take jumper wire, bend it to the trace shape and weld it all down then call it good. As far as a via, a simple thin clipped off resistor leed ran through the via the flowed both sides works well too.The manual shows it going through the board. Luckily, I think in this case, if the via tube is gone, that it wound't matter as that via didn't feed anything else on the other side. I think it will clean up nice. Maybe I can get some blue UV mask in time, currently have red and green only. Those bare copper traces need to be covered up, would be nice if it matched. (edit: blue mask arriving on the 5th)
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A gem of a radio like that deserves a nice repair like you mention.