If I am correct, Wing did not make any of the Chaparells. they were Head Ski, and possibly AMF.
They are great shooting bows. I had one and donated it to our club for an auction. If I remember correctly, I paid about $150.00 for it. It is worth what someone will pay. I checked Ebbay and they are none listed. AMF and Head Skii bows are not great collectibles, but some are great shooters. hte Chaparell is one of these.
Best thoing I can suggest is to put it on the Trading Blanket and see what kind of offers you get, or put it on **** and crosss your fingers.