It's not that simple. There are hundreds of luthiers making professional concert quality classical guitars around the world. Similarly, there are a dozen or more brands of strings used by professionals but it's simply a matter of personal taste.
I happen to have a Jose Ramirez classical guitar and I favor Savarez strings but that's just my choice. Check out Guitar Salon International to get some idea of what high quality guitars are out there: http://www.guitarsalon.com.
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