I am a welder with over 20 yrs experiance with most of that being aluminum TIG. The most recent thing I have done like this was the front brake housing from a 72 daytona. In the case of that job it was some material around the vent area that was completly gone,I built weld up to replace the lost section. It was probably 4 to 5 sq inches of material that I built then dressed off to the point that it was un noticable. PM sent
I admire harly riders greatly.How brave they must be to take to the hiways and byways on a motorcycle so bereft of handling and horsepower!