the only cyclocross-like bike Klein made was the Adept. it was more a hybdrid/touring bike with 28" wheels but certainly had cyclocross potential. the one Caroline Alexander rode was an Adept but it had a special quill stem with loose drop bars instead of the MC1 bar/stem combo.
Yeah, Navigator was intended for touring.
Klein advertised Adept as a multi function bike, capable of cyclo-cross as well. It could be ordered with drop bars and Control Tech special stem (naturally painted to match).