The Classic is a great little boat. This was Hobie's original Mirage kayak before it was renamed years later. I think they were built from late 1997 until 2006.
The earliest version was fiberglass. Tthere are a few of these still around and some folks consider them collectors boats. The current rotomolding manufacturing process was begun in about 1999 I think. there were some technical improvements over the years but the basic layout stayed about the same until the '06 models, which got some nice cockpit improvements and the ability to use a standard Hobie scupper cart.
They are (almost) the only Hobie Mirage that lacks the ability to use a sail. None of them had the Twist N stow rudder. But they are fun, lightweight and quick for their size, especially with Turbofins.
The year model is shown in the last two digits of the serial # (hand inscribed near the stern somewhere on the bottom of the hull). Price should be commensurate with condition. Look at the condition of the bottom of the hull for a good guideline. Determine of the boat was stored inside or outside. Look at the Drive and operate it with your hands. Almost all parts are still available. The complete boat would include seat, operating rudder, Mirage Drive, drivewell plug (used for paddling) and paddle.