I wonder if using the engine AND transmission to power the generator would work?

1800 rpm generator means 1.5:1 gearing (don't know which gear) to give 2400 rpm engine speed, right in the fat part of the torque curve.

Then, use the speed control to keep driveshaft rpm constant at varying load, and you have a crude, 3rd world-worthy generator. With the right size radiator and fan, it might work better than imagined...

What say ye all?

Best Regards,
Jim