I got a reman short block with 3yr 75000 mile warranty and arp head studs for around $4500. It depends if you want to use all the other components from the old motor like turbo, injectors, etc. I would definetly have the injectors cleaned and tested before they go back in, they are a common problem on these 06 trucks. Or just keep searching the internet for a complete pull out from a wreck or something. I would still test injectors and just cross your fingers that you got a good motor. Can you use the 24v shortblock that comes with the truck and put the commonrail head on it? Might be worth checking into.