Panalure is not a film, it's a panchromatic B&W photographic paper with a gelatin silver emulsion, and it can be processed and toned in ordinary B&W chemicals. Because it is panchromatic, of course, it needs to be handled in total darkness. I believe it is still being manufactured, but only in RC. I don't think there are any other panchromatic B&W papers around.
A B&W dupe from a color transparency can be as good as your technique and equipment. It's best to dupe to a larger format than the original if possible. It can be done with an enlarger or a camera on a copy stand with a light box.