TO RESUSCITATE A flooded Tesla, first extract any dead fish. Then strip out the leather—it may be infected with mold spores. And scrape salt from the car’s corroded high-voltage batteries. Finally, Rich Benoit explains, harvest parts from other damaged Teslas. (Don’t expect much support from the manufacturer, who’d likely prefer you just buy a new vehicle.) Benoit, a Boston-based IT manager, has been stripping apart e-cars for the past three years and chronicling the endeavors for more than 400,000 YouTube subscribers. Now he’s crowdfunding to open his own shop for totaled Teslas.