I'd certainly be interested in something akin to this, though I'd prefer to glance at the lore a bit before I fully commit. I've been toying around with the idea of having a religious figure as my main character, probably in the form of a member of whatever ecclesiastical/ecclesiocratic organization is present and/or prominent in this setting. 

If you need help with establishing the lore for your universe, I'd love to pitch in. I have a rather large reserve of material for other (now-dead or long-forgotten) RPs which could be retrofitted to merge with whatever setting you already have. Anyway, if you need a hand, send me a PM and I'll gladly help.