Yeah no chance in hell your gonna turn this bitch over with an off the shelf drill. It's a 12hp single -plus that rotor has to weigh 50 lbs, PLUS another 30 for the flywheel. Lots of rotating mass on this bad boy.
No ring gear. E-start would require a starter, battery, wiring, and a new flywheel with a ring gear - all $$$$, so not happening.
I'm liking the rope idea .. and that would work if there was a way to wrap it around this thing. The other issue is ..... if I leave the shroud off for that setup, or an pneumatic impact gun setup, now we have no cooling. Whatever I do, the cover has to stay.
The owner is hitting some scrap yards - hopefully we get lucky .. but in this part of the country I seriously doubt it. Nobody runs stuff this old - they just throw money around instead.
It's all long since scrapped.
The search continues ...