Before modifying a brand new truck, I wish people would visit a diesel performance shop and drive one of their trucks that was modified to make 800+ horsepower. Then, you could decide whether the drive-ability of a performance oriented truck is acceptable for how you intend to drive the truck most of the time.

A 1000+ hp truck won't be a good daily driver, in my opinion. It can't pass any state's emissions test, there is no powertrain warranty, and the abrupt transmission shifting and unruly power delivery reduce its user friendliness around town.