if you can find an arsenal 107-11, that will be right in your price range at around $850. It does not have a folding stock, or threaded barrel, but it's $300 cheaper than the 107 fr that has both. Vepr Fime is also a great buy, and has an RPK receiver, so it's a bit heavier. Stamped Mak 90s can be found in original form between $800-$900. They are chinese, but quality rifles, and very sought after. They have awesome triggers, and are a bit thicker than other stamped rifles.
Also, if you want a working ak, don't underestimate the Romoniam wasr. They aren't pretty, no frills, but they run ($650).
oh, and whatever you do, don't buy a dam century rifle. Those are the biggest pos in the world. They focus their efforts on marketing "made in USA", and skimp on quality (cast trunion, soft metals parts).