I've been given an old (probably 70s') steel frame racer that may well be a Peugeot. It has Shimano Thunderbird gears with terrifying shifters that are mounted on the bar. The frame has been knocked about a bit but seems okay. WIth some spare wheels fitted and some bar tape and a new saddle I was thinking it would make a good singlespeed for getting in and out of town. I just wanted to check that I wasn't committing some terrible act of cycle vandalism-this isn't likely to have any value is it?