It's quite humbling seeing these craftsmen at work. We have a guy here in the Midlands - Pete Kyte - who makes all sorts of wonderous stuff in alloy.
He's made a few tanks and bits for me in the past - but mainly he was the go to guy for the main Japanese factories when they wanted something made / refurbished for their early factory racers.
Once when I was down at his workshop he was making a complete set of 60's Racing Sidecar fairings - from sheet alloy .
Another guy I know makes car bodies - mainly the C Type and D Type bodies for the RAM cars - but he's also made Cobras and years ago - when I had my business = some money - he made a Porsche 550 Spyder body for me.