Just a datapoint, but I recently replaced the tank in our 2006. I got a used tank from a salvage yard that came with the fuel pump in addition to the tank. I just made sure the bolts were tightened on that unit and installed it with the tank. It has been running great. As far as the job, you should just need a 14 mm socket to remove the second row seats, a 10mm to remove the plastic steps near the doors, a phillips head to remove the cover, a small flat head to remove the yellow clips that hold the fuel lines in, and I believe a 9 mm to remove the 10 or so bolts that secure the fuel pump in the tank. You might want to disconnect the electrical connector to the pump and start the truck to help relieve the pressure in the lines, but they pop out. They might spew some fuel, but it won’t be more than a quarter cup (few paper towels should be good). If this doesn’t sound good to you then I can imagine the job would take around an hour given the seats and connections.