Lots of threads on UV boxes, as these alt processes are generally contact prints. I don't know if you could get enough UV illumination into such a small place without frying your negative in the process. Contact prints seems to be the way to go, and it seems so much easier to use the enlarger to make an enlarged negative for contact printing, either on traditional film, on ortho/litho film, or even on paper negatives (a la Fox-Talbot).
UV boxes still require long exposures, 20 minutes, one hour, etc., but they do give you consistency from session to session from the same contact negative. However, backyard sunlight is still much faster, way cheaper, more fun, and is the traditional way these things were done.