I like the ideal of a welder, generator, compressor combo machine. Dont know that i really need one, but would probably jump at the chance to buy a good used one. When you think about it a little bit, most engine drive welders i have ever seen can be used as generators. The welder hooks to the tail shaft of the engine, why couldnt you just add a compressor to the flywheel side of the engine and a couple of those contractor compressor air tanks to just about any brand of welder, and make your own combo. I probably wouldnt go thru all that trouble, but it should be easy enough to be done if you really have the need for it.