It's just a suggestion, but buy a aluminum fuel cell off of ebay, pretty cheap. Mount it in the back of truck and cut a hole for the donor pump. Place pump in and make four tabs to hold pump in place. Run the single stock fuel line to fuel rail and you are done with fuel. If you use the donor instruement panel you can also get fuel level from same pump. It's really all about thinking ahead. I know I did not, LOL!