[Yosemite Sam]

Welcome to OCC.

I don't know if two separate issues is better or worse.

I'd probably try to figure out the electrical issue first. Start at the battery and work your way to where the electricity stops. Might be something as simple as a bad neutral safety switch or unplugged. You can find a wiring diagram in the tech, section.

If the engine was running with no knocks or unusual noise, you may not be in much worse shape than you were before. If there was no oil on the stick, I'm guessing that it already used a little oil before your neighbor got it, Lord knows they don't run without oil for very long.

Good luck and keep us posted.