ps pump removal tool
There are a couple of types of tools available, not expensive, but worth it.
The one I thinks works the best has a split jaw clamp w/ a sleave that fits on the nose of the pulley, be careful: sometimes the sleave is not small enough to hold the split jaw clamp in place and it will pop off when tension is built. To prevent this use heavy duty hose clamps. By pulling the pulley this way, you dont have to remove the entire bracket from the car to pull water pump or ps pump.
As for the spanners they are still available. When I was in the Service one came in a mechanic's tool set we ordered, and it was large enough to use on the collar. Not only that but the handle was alum. and the pawl was hard non-spark bronze. Had to trim the pawl to fit the notches in collar but it works great. Spanners are also by firefiters for hoses and by Marine (shipbuilding) electricians for special water-tite cable connections.
LOL mike
p.s. when puttinh the pulley back on the ps pump, it goes on easier if you heat it in the oven to about 250 F.
p.p.s make sure the threads in the ps pump shaft are clean before pressing on pulley.