One thing that might help ya out. You do not have to remove all the injector lines. Cylinder #6 is hard to get to and can stay attached to the injector as well as the cylinders 3 and 5 that are with it. Just remove these lines from the back of the pump and loosen the hold downs so they will move and push them gently toward the block to slide the pump back and out. They will move enough to get the pump out. Cylinders 1, 2 and 4 need to be removed from the pump as well as the injectors.
I had a Cummins tech tell me about this little time saver which really helped me. If you remove the line from injector 6 you also have to remove the rear engine lifting bracket which is a pain. Also if the crankshaft position sensor is in the same place as mine you might see what the cost is for a replacement. The CPS on my truck is between the VP44 and the block, hard to access with the pump in the way. It is not a bad job and took me 3 hours my first time. Also another MUST, be sure that the keyway on the pump shaft is at the 12 O'clock position before removing the pump, you do not want the woodruffs key falling into the front of the motor. Have fun