"Other" really describes my dilemma

I've got a fantasy world made up of three nations. One nation is atheistic/agnostic (depending on the individual). The second one has pluriform monotheism. The third is polytheistic, with an incarnational system that I stole straight from Christianity. Some of the other stories feature monolatrism (i.e. henotheism) and ancestor veneration.

How the heck do I market a series like this? (By "market," I mean to readers - I self-publish.) I want to reach the readers who are interested in religious fantasy, but I don't know how to market a series featuring paganism to a Christian audience; nor do I know how to market a series featuring paganism that draws quite obviously on Christian imagery to a pagan audience. There's probably no hope, I suppose, of drawing in the atheistic crowd, even though the freedom to not believe plays an important role in one of the novels.

Oh, and did I mention that another of my series features reincarnation?

(*Holds head, hoping for useful advice*.)

Anyone who's interested in religious fantasy (among other things) and doesn't mind seeing various theistic/polytheistic/atheistic beliefs presented sympathetically. The trouble is that there's a lot of sensitive folks in the various communities: atheists who have been stung by theism; Pagans who have been stung by Christianity; Christians who have been stung by anti-Christian forces. So how do I reach the ones who are still willing to read about other belief systems, without unduly offending those who aren't?

I'm afraid it's speculative, so it's only educational about real-world religion in a roundabout way. But I like your "thinking outside the box" suggestion.