If need be-
Jury rig a hand-powered generator from a truck or car. Use this to start a car. Jumper-leads from the car to a GPU- now running GPU to power the busses of an aircraft.
Find a 777 300ER, 200LR or 200F. Fill the tanks.
With the small load you are talking about, you are now good for 20-22hrs- anywhere in the US to East-coast Australia. IRS will still be sufficient to get you at least landfall- visual nav to then find a suitable airfield.