Ouch, that is like a leak in your bank account. Sorry I don't know the size of the line, but I just replaced my fuel pump this week and if your's is the same as my 93 V6 ext-cab there is a fitting on top of the gas tank where the pressure line starts. What goes down into the tank is part of the whole fuel pump bracket assy so hopefully you won't need to replace that.

93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift, Alcan springs, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" BL, 1.5" BJ spacers, TJM T-17, Warn m8000.