I've seen people take the heads off and use a pipe cutter (type you cut steel with... you tighten it down as you spin it around the shaft). The length should be around 32-36".
Whatever you do - Take A LOT OF PICTURES before you start unhooking wires from the head. It looks simple enough when you take the head off, but trust me... it gets confusing even when looking at pictures. I would also suggest printing out the pictures before you actually take them off. Number the wires with some type of tape, and even put a small piece of tape over that connection on the head so there is no confusion.
You will probably have to cut back your wires a little, but it is possible... I did it once, but I sure wouldn't want to do it again unless I had to.. but, if it was making me uncomfortable, I would cut it down.