No mention of original drivetrain. Car looks to have been ridden very hard and definitely put away WET. There is some sort of support bracket for a modified fuel tank/cell going between the leaf springs... or maybe its a rear sway bar? A car with a motor and drivetrain like this and 70K + miles will be hard pressed to make it this far with "everything" intact.

With all that rust on the car, I'm sure he mistook this 440 for an elephant! Hence the stratospheric predictions for sale price
All this aside, it will be a terrific car if it gets the resto it deserves.