Well, thanks in part to all the input I received here, and my penchant of old smokey things, on Wednesday, this thing followed me home!
I was impressed by how smooth and quiet it runs, and there is hardly ANY smoke from the pipe!! Compared to my Clarke backhoe with the Jimmy 3-53, this thing is putting out fresh air!!

Now I need to get my hands on any manuals, or other useful data on the engine and gen head - it's an interesting little unit, with some mods installed right from the start. Some of those are: a "built-in" load bank, which is a Q-Mark industrial electric heater, rated at 10000 watts, an electric priming pump inline before the mechanical one with a momentary switch installed, , and a Square-D 40A disconnect breaker just for safety!
Here are better pics of the ID plates:

And here is the Gen plate

And here is my favorite! This breaker makes me feel SO safe!!

Yes, those are copper lugs, crimped down to fit into the plug-on leaves of the breaker - WOW!!

A little work ahead for me, but all-in all I think it's a good find!!