I agree 100% with rumble on this. Too many people build a high dollar drivetrain with big plans of "go fast", just to have it sit in the corner while they scrounge up the money (usually lots of money) to get the body done. By the time they get the body finished, that engine may not even be what they now want! By doing the body first it gives you plenty of time to decide fully what the plans for the drivetrain are. JMO though! :D