I cheated when I did mine.
Freeze the bushing. Clean the hole in the crank and make sure it's got a chamfer. Once it's prepped, hang a balancer puller off the crank. Slide the frozen bushing between the crank and puller. Use a plate between the ram and bushing. Crank away but do it before the bushing thaws out.
This is just a random photo of the puller I grabbed from the net. I have a pic of my install at home but I'm not sure if it's on my current hard drive or the one that fragged.
We choose to (build this stinkin car) in this decade and do the other things, not because they are easy, but because they are hard; because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one we intend to win ...