Is this your Jeep? Could it be? Did you remember to check the oil! lol, Just kidding. But I did figure out what happened.
Do you see the tangs on the oil pump that connect up to the bottom of the distributor? Nope, that's cause they are lying on the wood next to the pump. They broke!!!
So no oil pump tangs = no spinning pump = zero oil pressure.
Not good. But the relatively good news is, no spun bearing, so it looks like it wasn't run all that long before they noticed. Yep, I can get a crank kit ($400). But the thing is, I'm not sure I'ma gonna like driving the little 4 cyl. For $1900 I can get a rebuilt 4 cyl, or a 6 cyl for the same price, and it'd come with a:
"36 Months and unlimited miles if installed in private passenger cars and light duty trucks."
But if I go that route, I would not have as much fun, so dono. Maybe I slap some bearings in it, polish what's left of the crank, and see if it runs for a at least test drive or two, to figure out it'n I'd be happy with a four cyl. That'll tell me what all else might be good or bad with this engine/jeep Dono, but the wheels are turning.