I suspect the guys meant that the oil went into the cylinders or at least some of them through the valves when the car was upside down and running. The opinion I would seek now is if some of the bores are damaged or just putting new rods in the engine might work. Unfortunatly the rods are at a better than 90% chance of being bent from your description and others experience. I agree it is too bad. Nothing good only increasing damage may happen from driving it any more now. I would tear down the engine and have a good automotive machine shop guy check those bores carefully if there is no visable damage. Even a little damage in say two of the bores might be dealt with by a slight overbore and two new pistons. Afterall the engine only has 82k. But to make it financially viable you have to get your hands dirty I personally would take this option unless a lower or simular milage engine was available that one really could establish was a genuine low milage engine..And needless to say the price was right.