Unless the chain breaks or the water pump goes out or the head gasket pops...

My mistake must have been using synthetic oil? If someone got a good one, I am glad. But there must have been some reason for the re-do in '04. They didn't do it for the fun of it. I admit that I was unaware of this, but I would honestly run from a pre-2004.
Look at some Dodge sites and check into the price of a long block, how many cars you see getting parted out on craigslist because the 2.7 in it is gone, and anyone buying used probably cannot assure how a used vehicle was really maintained prior to their purchase. Good luck either way.