My advice would be not to take off the metal bands simply because if you have screwed up something or the couplings need to come off for any reason it'll be easier if you haven't snipped the bands off! As for spring fitting, just get yourself some 3/8 threaded bar to make 4 super long studs that you can put in the diff top and wind down the spring with. Be warned that the holes in the diff top go right through into the diff so best you lock the threaded bar at a suitable depth to avoid screwing it into your diff workings! Attach spring eyes to top of vertical links, put top spring plate on to your uber long studs and wing it down. Lock it with the two "free" studs and then replace the uber long studs one by one. You'll find that without the weight of the car the spring lifter tools don't work well.