well i got a fana zealot (lvl94),and i have no problems at all in chaos.
as a weapon he uses a paladin scepter with nice ed and the runeword broken promise.
as helmet a blood tiara and as belt a blood-belt.
for the rings,depends on what u have,i would prefer jackals laughter zod'ed if u got no ubers
boots+gloves trav set (or uber;))
and for the armor i would recommend shattering blow (upped twiced),with that
armor u get so much cb,its awesome
for killing pi's:
get an item with "freezes target" on it,e.g. nightshade unique charm or use
the runeword broken promise,with that you can pierce immunities,and if they are not champs/bosses and are not both cold AND pi,then the physical immunity goes away.
For bosses you should use the spell Amplified Damage (AD),which you can get on your doll stash (on my doll stash with ~140 dolls this time).
I hope i could help you a little bit...
if you play on realm you can also ask me online *azrol
have fun with your fana/zeal