The Hobie Mirage was their original pedaling kayak, first produced in 1998. When other models were introduced, it was renamed Mirage "Classic". It was produced through the 2006 model year. Excellent little boat!
Your serial # should be on the side or bottom of the hull near the stern, hand etched. The last two digits are the model year.
If you want to send a pic of your drivewell, I'll be happy to see if anything is missing.
Your original rudder lines were monofilament, but have long since been replaced with Spectra. You'll have to re-string it yourself.