Resurrection spell on 3rd lvl can only work on 4th lvl units, so for 5th lvl only way is inquisitor, and bone dragons with Evlin spell, or Time back if you time it right.
In Scarlet wind cave i got some nice items every time i played (and it`s allot
last save i got there is cyclop eye +4def, and rahha shield that gives you dragon every time you lvlup. But it`s CW save, i dont remember what items were there in AP.
As for rusty anchor `luck` cave, should be a bit better item it`s just your bad luck
No pun intended.
I`m off, take care