What is the package size of the genset you guys are discussing?
(L x W x H, approx. weight?)

ETA: For example, I know the 13hp gas compressor set I have here is about 500 lbs +/-.
But, that is the engine, the compressor head, and the air tank all in one unit. So, would a 20hp unit (larger engine) with a generator instead of pump and tank be, say, half that weight?

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"That was a little trick I call math. Oops, now I'm not emotionally invested..." - Dilbert
The only good thing I have to say about Barney Frank is at least he's not breeding...