In 1984 I received a Free Spirit Sears and Roebuck & Co. bike for Christmas. It has never been restored with the original Sears and Roebuck sticker, seat, handle bars, etc. It has a number on the side of the bar that holds the handlebars: 502479880. There was another number on the other side but it was hard to see. There is also a number on the sticker 0984. I am having trouble uploading more photos but will keep trying. I was offered $500 as is. Is that reasonable?