Brickster,
With your oil tank mounted in the bed be sure to make the drysump pump inlet line big, at least -16, bigger if you can . Even though the inlet port on the pump may be smaller run as big a line from the tank to the pump as is possible. Your pump will like it. Probably want to consider a tank heater also.
Love the fab work and can't wait to see your truck on the ground.
Rex