The diesel forum is an excellent place to look. There was a lengthy discussion on the best diesel just recently that will give you a good perspective on mileage, repairs, and durability. I bought a one owner two years ago and it had 91K on it for $4,800 and she was in excellent shape. I put about $500 into it to bring it up a bit and she's running strong 23K later! This is my 3rd one over the years and plan to keep it. My advice? Look around!