Just looked at a trad classified section on another forum ans they are being offered for anywhere from 3-500. Obviously condition warrents the price. String them up and shoot them before you buy. Make sure the limbs are not twisted, -that the string lays back into the groove on the limbs after a shot or when you let down. Any recurve should be checked for that. But make sure the bow is sound and straight, then see if you can comfortably pull it. No sence buying a bow you really can't enjoy shooting.
Also check Ebay for what they have been sold for.