Share 'WTB: Child's / small cyclocross bike'

Hi, I've gotten into cyclocross, and now happily so has my daughter, but her old boat anchor mtn bike isn't cutting it for this. So, I'm looking to buy a small cyclocross bike for her. Convertable road bike would work too. Not looking to break the bank on it, but a decent steel bike would be great. Maximum standover about 29 inches. We're in the Chicago area. If you've got one or any leads, ple…