and don't forget you have to pay a buyers fee which will drive up the price a bit as well, then pay taxes on it for whatever you bought it for as well. They can idle fine but it depends how they drive under load. Also without being able to drive it the trans would worry me. I would look on the side of the trans to see if there is a tag somewhere on it. If not then I would highly doubt it has been rebuilt , most places put a tag of some sort on them...... and a 4r100 with 260k stock trans is usually no bueno
but you always get the 7.3 faithfulls out there that think every 7.3 is a million mile truck, at those type of auction settings that we have run into at least.