That bike is going to be a beauty! I like those cranks. Some of the newer ones just look ugly and flat to me. I'd listen to Deb. I'm not even close to expert, but why on earth can't you just replace the chainrings? I've noticed that some shop owners just don't care for the older bikes, and only want to deal with new new new, and others like them like we do. Can you find one who thinks that it's a lovely bike and doesn't want to take away it's character?