[dsraven]

I'm personally not fond of the tank fill in the truck box deal. thats just me and I like to carry the odd thing plus don't wanna go getting up and down from inside the truck box at the gas station while carrying a live fuel nozzle. my filler is on the fender, driver's side. it's your truck so you gotta do what you like. a longer fill tube may lessen the blow back when the tank is full but may also be a little slower to fill. be sure to incorporate a ground wire from the filler to the frame and/or the tank housing due to static caused from the fuel running down the fill tube and also static from the pump hose to the vehicle.
nice tidy work you are doing and thanks for posting up pics. we all like to see what others are doing and how nice their stuff turns out.