Apu generator

I have a stand alone apu that I had on a couple different trucks. It has a 18 hp 3cyl Perkins d motor with just under 10000 hrs and a 7200 watt pancake generator attached to the flywheel. I replaced the water pump and thermostat and valve cover and oil pan gaskets and replaced the radiator. It had electric heating and cooling unit that went in the truck sleeper but went bad, I have extra control box, and 110 plugin box.can include 140 gal fuel freightliner fuel tank.