Doug:
i think your lister/generator/inverter idea is a sound one, seems honda, yamaha and others are using this approach to
good effect.
i passed up a 30hp dc motor some time ago, that i am sure would have made a heck of a dc generator,
having picked up a 15kwatt 3 phase ups, i wish now i would have gotten the motor and set it up on my 25/2
would have been pretty cool as the front end battery voltage on the inverter is 220volt dc.
would have been a sweet setup, pure sine wave, spot on frequency regulation, power conditioning and grid connectable.
maybe i should look for another heavy high output dc gen head. if i can find one for the 50 bucks they wanted for the last one, it wouldnt cost much to give it a try.
bob g