A third for getting an oil sample. I looked at a truck that ran and drove great. No signs of any water or fuel in the oil. Price was right, drive train was right, was ready to buy, oil sample came back with water in the oil. Walked away. For being a toy hauler I'd hat to have to rebuild shortly after I bought it. You'll have another $16,000 in a rebuild.
I wouldn't be afraid of the S60 either, if I had no preference over big cube Diesel engines. Will most likely get the best fuel mileage with a tune and EGR delete of any of them.
Again, what's it worth to you. I personally wouldn't even consider a cabover, so I can't help you on the price.
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