My wife and I rode to the beach in Hilton Head about 11 years ago on a borrowed tandem at her mothers house...I proposed that day (the bicycle built for two thing was just a happy coincidence, I didn't plan it). Anyway, I have had an urge to get an older single speed tandem just for poking around town and maybe pulling a trail-a-bike. It doesn't have to be a '50's schwinn in perfect condition, in fact I would like to do some painting and cleaning just for fun. Any idea where to get such a thing at a reasonable price? Any brands/models to stay away from?