My father left this Moped with me to sell. He had it stored in a shed for 35 years. It has 54 original miles on the clock. I changed the spark plug and with fresh fuel it runs fine. The front fender fin is slightly damaged but everything else looks new. Tires are not cracked but wheel rims have minor corrosion. The dealer here has no idea what it should sell for. What is this Moped worth?