You might be able to cram Chiv on there, but your main source of healing comes from Curse Weapon which gives 50% Life Leech. The constant casting of Curse Weapon usually means your Karma won't be high and the duration of Chiv spells will be affected.
Depends on what you're killing most of the time. If you're doing spawns, karma will stay high, if you're killing bosses, you're karma's wrecked (until you do a spawn, then it's high again).
Without FC/FCR Close Wounds is too slow, as is remove curse. With FC/FCR the only real PvM negative of having low karma is Remove Curse wont work. Cleanse by fire will work, but you'll fail a few times, but curing poison with it isnt that useful anyway since only High level poison matters, and they're only inflicted by monsters that inflict it on hits instead of spells, and then they'll just infect you again 5 seconds later. Not to forget, Curse weapon typically just laughs off the extra poison damage.
Also, at 70 chiv you still heal 25 damage with completely negative karma.