An acqaintance of mine approached me about repairing a steel frame that has a crack in the seat tube that runs length wise about 3 inches and the right side chain stay that has a U shaped crack between the BB and chain stay bridge. I told him that will be super labor intensive and perhaps just the chain stay can be replaced and the seat tube crack filled in and wrapped with a piece of metal and brazed in place. Is this a viable approach?

Second question: How is it people find out I have build a few frames and they come to me with their broken frames for repair? Built 3 frames and this is the 4th person seeking a repair.