A low-number executive car like yours can bring a few more bucks. Condition plays a part, and how rare it is on color and equipment.
It's a beautiful car, and if you don't have to, don't give it away.
Also look at the Saleen Locating Service at saleenls.com and see if there are comparable cars listed and if they're moving. PerformanceAutosport.com would also be a good thermometer.