If you have an Autozone close you might check to see if they have a puller in the loaner tool section. If I remember right, you buy the tool, use it and have so long to take it back and they will refund you the price of the tool. Failing that you might call some of the large chain parts stores and see if they have a puller that they use in the store and if they will pull it for you. Old parts chain I used to work at did have them under the counter as sold PS pumps with no pulley. Customer would bring the core pump in and we'd swap the pulley over for them.
Best of luck!