Changed my timing belt this weekend, as well as waterpump, cam seals, hoses, etc.
I couldn't find the bypass hose at any of the autoshops, or at the dealer. The dealer said Nissan does not make the part anymore and that I could call a few other dealers to see if they had the part in stock. I ended up finding a hose from Autozone that had a 90* bend and was the same diameter, and it seems to be working just fine.
I took off the crank bolt by using the old A/C belt, connecting it to the P/S pump pulley on the crank, securing it with vice-grips and wrapping on the old water pump. To attach it, I put it on the A/C compressor since I didn't want to break the new waterpump and the A/C looked stronger. It worked like a charm.
Now, the engine is quieter and I can hear the exhaust leak better.