Where's your engine room floor? I thought all NJTs had engine room floors?
Be interesting to see what the noise level of that genset is like? Cannot be any noisier than my Yamaha diesel!
How does the generator start? Thru the generator head?
Do you plan on using aircraft quality fuel lines? I highly recommend such if that unit is gasoline powered.
The unit isn't designed to be installed in an enclosed area. It'll need a good bit of cooling air if you use it while the chassis engine is running. The engine room will operate at about 180-200 degrees. That's probably outside the norm for both the engine and generator head.
If you have enough 'amp headroom,' you could install an AC fan to supply outside air ducted to the engine and generator inlets.