I finally completed my run of Elephantmen and I am ready to read it when I realize there were a few issues that came out before Elephantmen No. 1. I then buy a hardcover called Hip Flask Unnatural Selection and it only looks like a reprint of one story. I've looked online and cannot seem to find decent publication history.

Are there any Elephantmen fans out there who can tell me what I need to buy to finally get a complete story?

Thanks in advance.