if you piety in the room of corruption. the room with explosive barrels you wont take any damage from the "corruption" so super restores wont be needed
dubt it acording to tips soul war calc are prayer 3,510 xp/zeal @ Level 91 250k ish exp for my prayer and maby 300k tops for ur prayer? here are an link for the calc. http://www.tip.it/runescape/index.php?swc