Mark you apparently got the idea of what I was suggesting and that is tool around a parking lot with the crank bolt still in but loosened a turn. I took it the crank was unusable and that would be the only reason to try this. We have also done this in the shop with a toasted crank arm. Get the cranks horizontal, leaving the crank bolt on, but a couple of turns loosened. Apply pressure then rotate 180 and apply pressure again. It is very important to leave the crank bolt as to keep from sustaining the kind of injuries that Brandon has suggested could happen.
Mark, desperate situations call for desperate actions, Poore