They have a 110 volt generator that goes on the fender but it's not a welder. Being a 1943 model it'll need a 4 cylinder 3 stage air compressor that puts out 2500 pounds pressure. The air tank that goes on the fender is actually an oxygen cylinder to handle that kind of pressure.
If you check out the
cletrac.org site there's pics of me pulling a B17 at the Saskatoon air show a few years ago. They invited me back again this August but I'm not sure if I'll make it or not.