I need HELP! I can't get the main bolt to budge on the balancer pulley!!

[Estroil 4.8is]

I gave up for tonight. Everything went smooth during the removal of my water pump. But when I tried to snake it out, it gets stuck behind the EGR pipe. The only way to remove it is to drop it down and the pulley is in the way. I unbolted the smaller bolts around the large center bolt. But now the bolts won't move I have a monkey wrench(plumbers wrench) on the shaft and that's pinned against the block and a large breaker bar on the bolt. The thing just won't move!! I've been trying the last 2 hours. I've run out of ideas. I'm just afraid something is going to break. The only other option is to remove the EGR pipes but those seem to run into tight spots and I can't even see the bolts. Please help as I need to have it back together for Monday.