Your dp actually has very good runout not worth fixing. You state it is only 1/1000 which is plenty good for wood working. Your problem is all in the easy to replace non DP parts. If you have the wedges it is a few minutes work to remove and clock the arbor around until you get the best location. No need for a full force installation just a light tap with a hammer will do until you have the final location figured out.. I do not like a deadblow hammer when striking upward. I use an automotive suspension "pickle fork" tool to remove the chuck. They do make special order check removal split wedges but a pickle works fine if you sharpen the end a little.
Bill D.