I bought a surplus military generator!  This is a Dewey Electronics Battery Charging Auxiliary Power Unit or BAPU.  It uses a Yanmar L100v air cooled single cylinder diesel engine to drive a Prestolite alternator which generates 28V DC at 3.5kW!  This could work as is in my planned power system architecture, but this engine is capable of putting out a lot more power.  Think I have something planned???  Of course I do ;)