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I would hope since its designed to be maintenanced its more in the $800-900 range. Have heard the 2.2 ecotec engines the timing chains can cost around $1800-2000 to change since its something like 8-12hrs labor.

 

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then they are doing it wrong. its pretty simple. hardest part is realigning all the timing components. the whole job can be done in 3-5 hours.

maybe? but that is dealer labor rates for the job. Have you done a 2.2 Ecotec? remember there is two chains that have to be in time together. One that turns the cams like normal, another that turns the water pump and balance shafts. PITA design.

In the image below you can see the smaller chain that does the water pump & balance shafts. You can also see part of the longer chain running up to the cams.