This could be a big deal so it needs to be at the dealer its at. They have the best resources as far as I can tell. The Edmunds info is quite revealing. Thanks.
If the belt and A/C bearing get replaced and you carefully look for overheating and other problems within the first minutes of starting the engine, and find none, there are likely to be no further problems. On the other hand, a mechanic could also spend many hours and many more dollars looking for more problems, too. He might even be able to "find" some.