Silent diesel welder???
Chunko'.
Yeah. I was thinking that.
You don't get many Silent Diesels.
Wouldn't have thought there was much call for welding them....
Friend of mine makes F1 models, whole different thing, but...
http://www.ardcor.co.uk/modelmakers/motorsport.html#
Makes all the patterns and gets the parts cast in assorted metals, resin or rubber. Then there's all the mucking about, trying to get the paint finish right (difficult on a scale model), finding mesh to make the screens for the induction trumpets, the right diameter material to make the brake lines, HT leads, and fuel lines, and so on.