I wouldn't really use Magic in PK atm other than for Vengeance.
Take runes out for Vengeance first of all.
Low Risk Set-Up:
Head: Rune Full-Helm
Neck: Amulet of Glory
Back: Ava's Accumalator
Chest: Royal D'hide
Legs: Royal D'hide
Hands: Royal D'hide
Feet: Snakeskin Boots
Ring: Ring of Recoil
Main Hand: Rune Crossbow
Off Hand: Anti Dragon Shield
Ammunition: 50x Runite Bolts + 50x Dragon Bolts (e)
That set-up is about 180k risk, you could also add a Dark Bow + 10 Dragon Arrows for a killing blow weapon which adds another 210k Risk.
High Risk Set-Up:
Head: Armadyl / Robin
Neck: Amulet of Fury / Ranging
Back: Ava's Accumalator
Chest: Armadyl
Legs: Armadyl
Hands: Armadyl
Feet: Ranger Boots / Glaviens
Ring: Ranging Ring (or w/e it's called) / Recoil
Main Hand: Rune Crossbow / Dark Bow / Cannon
Off Hand: Dragonfire Shield
Ammunition: Dragon Bolts (e) / Dragon Arrows
Probably like a 35m Risk there, hey, you wanted to hear it