If you have a decent 1/2" drive impact wrench and beefy compressor, the only other thing you need is patience. My first crack at the crank pulley bolt took some 45 minutes of pounding with the impact wrench. Cranked up the pressure to ~100psi I would pound the crap out of it until the pressure got below 80 psi (~2-3 min), then wait for the compressor to catch up and shut off, then again, then again, etc. It will come. I just did the same thing to the crank bolt to change a timing belt on a Honda we just picked up as a spare car. That one took an hour to break loose. Once you realize that it will come once you beat the shit out of it, you just get bored waiting for it.
BTW, I do thi soften enough that I need a bigger impact wrench.... (IR 231 is what I have now - the classic).
Many have used the starter bump method (but not I). If so, please make sure your DIS is disconnected so it can't start!