Cross process it in what? Remember, the K14 process adds dyes to the film. The only thing that you can probably do is use it as a BW negative film, but I don't see a reason for doing so. Other than that, a member here has slitted 120 Kodachrome to make subminiature film IIRC.
You could probably also process Kodachrome as B+W positive. I'm not sure if dr5 can do this.