Thanks for the write up. I bought a fixer upper 2004 Aveo for 800$ two weeks ago. I noticed there was a noise coming from the timing belt area so I ordered a timing belt kit just because the previous owner didn't know when the timing belt was replaced and he had it for 35k miles. When I got inside I noticed that the crankshaft gear was bent from one of the teeth and it caused the belt to wear out from the middle. Good thing I caught just in time before it snapped.
I went to autozone and oriellys to rent the water pump tool but they didn't have it so my dad came up with this idea to use a small combination Wrench and large screwdriver to apply tension to the water pump using the ridges in the pump.