Stop in for a cup of coffee

Drop the tank or raise the box?
I had the tank out some time ago to replace the fuel lines. Shouldnt be too bad. Its a crusty truck,3/4 tank of gas too. Not sure if hes willing to cough up the money though,$1000 ish by the time its all said and done.. activated pump with scan tool and thump on tank and it will start. But quits right away.