Well, I'd get a fused disconnect or small breaker panel, and wire the outlets on the south side of that. I'd mount the disconnect/outlet on a surface not subject to vibration, and run a piece of Teck/SJOOW/BX from a hole (with proper wire clamp for wire used) in the dog house of generator to the input of the disconnect switch. Of course, I'd then have all of this properly inspected like the rest of my setup.
There are many variations on how to do this, but anything without circuit protection (fuse/breaker), disconnect means (switch/breaker), proper wire type (not regular house wire or orange extension cord), or proper wiring methods (wire not chaffing on side of steel box) is a bad idea.
If your setup is wired for 240V, I'd use a piece of 4 conductor 12AWG wire and put in two 20A, 120V T-Slot receptacles, each wired on thier own leg of 120V. That'd give you 4800w of 120V power available, with not much more hardware than needed to wire one 15A 120V circuit.
Steve
