I'm having some problems deciding which direction to go with a char I'm playing. I just got whacked by a gaggle of mummies tonight on my bard (did manage to drop one by myself, was gg) and its time to get found naked in a burlap sack again. Since our party is severly lacking in the spellcaster area, I'm wanting to go cleric (they're fun, played em many times before, but never did much w/ prestiges on em). From what I've been looking at, it seems like a good aim would be Cleric6/Radiant Servant of Pelor 1 since I'll be coming in at 7th level to keep up with what we're at in the campaign. The only problem is we're playing in an Eberron setting, which I know next to nothing about, and I don't know if I can use that prestige. I read a bit saying any cleric with the access to the Sun domain should be able to take this, but without any books for Eberron available to me, idk if I can do that.
Sorry for the long post, just wanted to make it clear my situation atm

Essentially just wanting to make sure I would have access to a deity/pantheon that would allow me to pick the Sun domain for this toon.