The owner said that the truck had a broken turbine wheel and truck wouldt spool that pass. he coicendentally won rudys that pass 7.70 class apparently.
Winning a 7.70 class at one event is nice, but classes aren't always won by the strongest truck in the field... and if the motor and trans are brand new with 0 miles, you have no guarantee it's going to react the same way with the new set up. Don't make a big purchase based on that.
looking for something turn-key. Rudys has had this truck building it with a full long block, RCD rods, bigger pistons, reduced compression, new heads, 300 hybrids, billet trans and converter, the works... truck only has 100k miles on a brand new motor... Seriously thinking about it... and its 4 linked with billsteins... I dont know if i could build one for that cheap!!
The ad says it was done by rudys diesel and has a brand new short block with RCD rods and new Heads and trans etc with 300 150 hybrids
I actually looked at the ad you posted out of curiosity after seeing how things have escalated. The ad says that the "Truck has just been gone through by Rudy's Diesel Performance. have an 8500.00 tab where they completely went through and replaced the driveline and ANYTHING needing to be replaced, including Brand NEW Oil cooler, all gaskets, O rings and seals."
That should be easy enough to verify with receipts or calling Rudy's. It doesn't say that Rudy's built the engine or why the engine/transmission needed to be rebuilt (and driveline replaced). If the seller only has an $8500 tab that includes replacing the driveline, new oil cooler, gaskets, o rings, seals, etc it doesn't sound like they did the motor.
The ad also says "can include upgraded turbo for the power level you need for additional price" which seems to address some of the questions you are bringing here... Although I'd want to see dyno numbers to back those numbers up if you go based on the seller's word. If you really aren't sure what turbo you want, you might call a shop you respect and talk to them about your goals and see what they would recommend for that setup.
And this may be nit-picky, but what's the big deal about 0 miles? Even the engine builders I know that use an engine dyno to beat the snot out of motors to test them before they go into a truck always run the vehicle once the motor goes in (if it's at the shop and not a crate ship) to be sure there aren't any issues before it goes to the customer... which racks up a few of the break in miles.