Did we, after all, confirm that we know of a source for a Raise Dead? I know it was discussed, but I don't remember seeing it confirmed. As far as paying, we have the gear from the two bad guy types, and we still have the mage, I think, to ransom.
I say we hold off on the ship for now. We are still in the general area of where we were captured and probably want to lay low for a few days. When we arrive to our destination, there is probably a contact that can find us a priest, and possibly the destination of the Lyrandar ship. We are low on spells and we money the equipment from the enemies to sell off for the raise dead(as mentioned).
I hate to do it, but I'm thinking I'd better bow out of this. We're at a decent juncture where Ariel can leave and not hurt the narrative, and...it's just not working out for me. I thought I could duck around the evilness with a neutral character, but it's just not my cuppa.