I now own two 6.0 fords, 03 Excursion(elderly neighbor) and 05 F-250 (estate sale). Both were one owner rust free not chipped trucks with service records. I've had a couple of issues, but quickly diagnosed and economically repaired by my local Diesel guy. He checked out both, and said buy them. I've called him several times, told him what was happening, he over the phone gave me a diagnosis and approximate cost to repair. Both times it was exactly what he said. He said, if you know it has not been chipped and not abused, they are reliable trucks. I sold my 97 7.3 with over 300k miles, several month ago. I had it on here with zero interest, it was clean and well maintained. Sold it locally for top $ , I was happy! Probably the lowest cost to own of any truck I've ever had. But it was getting old and I was ready for an upgrade. Low mileage rust free well maintained trucks come available here all the time, just be ready with cash and don't hesitate, they go quick. I'm not tied to Ford or any other brand, just lucked out finding the last three. I think in the 15k range, you need to be a cash buyer as financing 10-15yo trucks gets difficult. Good luck, clean used trucks don't stay on the market long and the flippers grab them up quick.