01 with 178,000 for 11,000 grand with a new tranny and converter. Sounds like a good deal to me.
The injectors and tranny probably cleared the 4,000 dollar mark by themselves.
If you or someone you know has AE, I would scan it and check the HPOP and run a cylinder contribution test.
In my opinion, the weakest link in the whole truck has already been rebuilt. (The transmission) Ask for proof that it was rebuilt, and if he has proof, buy it. That is a lot of truck for the price. The lift and tires alone would probably cost you 4000 grand or better.