Spent a long time playing with PDFRead, but couldn't find a way to make the images use the full vertical space (and be centered on the horizontal) so I ended up having to export them as individual images, archive them as CBRs, and use comiclrf to make them into LRFs. The LRFs mostly look okay, considering the source material. EPUBS, on the other hand, ended up looking horrible for all of them. But here are the LRFs I made.
http://www.sendspace.com/file/zy6qaj