Front end rebuild....buy new or rebuild?

Not exactly true. They can be oriented many ways, depending on WHAT you're doing. But to increase caster, they should be oriented with the bolt hole in the FRONT bushings facing closest to the frame and with the holes in the REAR bushings facing closest to the ball joint. In this way, you're effectively lengthening the FRONT of the control arm and shortening the REAR, thereby increasing the caster angle. You are shifting the upper ball joint BACK towards the rear of the car. They can also be installed to increase or decrease camber as well.
This seems backwards in my mind. If the the bolt hole in the front is nearer to the frame, wouldn't this be effectively shorting the Front of the control arm and if the hole in the rear is closer to the ball joint would this be lengthenging the Rear?