Generally speaking, it probably will not result in quicker or easier starts. It's not the distance from the tank to the carb that matters when starting but rather making sure you are priming the engine sufficiently. You actually want a slightly longer fuel line (say 10"-12") to make sure the engine keeps running when it flips upside down. When the truck is on its lid, the fuel in the tank moves away from the fuel pick-up in the bottom of the tank and starves the engine. With a longer fuel line, the engine can use the fuel that's in the line to keep running until you can run over and flip it back upright (just don't get into the habit of tweaking the throttle when it's on the lid).
As for the E-Z start, buying a higher capacity battery will certainly make sure you have enough juice to start it up.
