I'd try building a deathgaze barb. Take my advice with healthy dose of scepticism, I'm by no means a pro and I merely theorycraft on the run.
Head -
Boarfrost
Boarfrost
Assault Helmet (Sacred)
Defense: (2238 - 2561) to (2449 - 2803)
(Barbarian Only)
Required Level: 100
Required Strength: 600
Item Level: 120
25% Chance to cast level 40 Ice Bolt Nova on Melee Attack
20% Attack Speed
Adds 63-125 Cold Damage
+(21 to 25)% to Cold Spell Damage
-50% to Enemy Cold Resistance
+10 to Deathgaze
Weapon Physical Damage +90%
+(87 to 114)% Enhanced Defense
(21 to 25)% to Strength
Socketed (4)
or
Lilith's Legion
Lilith's Legion
Avenger Guard (Sacred)
Defense: (3691 - 4041) to (4067 - 4455)
(Barbarian Only)
Required Level: 100
Required Strength: 625
Item Level: 120
+2 to Barbarian Skill Levels
150% Bonus to Attack Rating
+(172 to 200)% Enhanced Defense
+300 Defense
20% to Strength
10% to Vitality
Physical Resist 10%
2% Reanimate as: Random Monster
(30 to 60)% Gold Find
50% Magic Find
Socketed (4)
. Latter has better survivability and mf, but former adds a lot of cold pierce.
Body -
Candlewake
Candlewake
Splint Mail (Sacred)
Defense: (8032 - 9339) to (11077 - 12593)
Required Level: 100
Required Strength: 600
Item Level: 105
-2% Base Block Chance
Additional Strength Damage Bonus: 0.0390625%
-(11 to 15)% to Enemy Cold Resistance
+(150 to 200)% Enhanced Defense
+(1500 to 3500) Defense
(10 to 25)% to Strength
(50 to 100)% Bonus to Defense
Cannot Be Frozen (1/2 chance to appear)
Socketed (6)
(percentage str bonus, ewd scaling off str, cold pierce and good def) or
Rebel (Xis)
(flat str, fixed ewd, high resists).
Gloves -
Mercy (Xis)
for massive flat str and max damage, or
Cinadide's Bender
Cinadide's Bender
Gauntlets (Sacred)
Defense: (1339 - 1506) to (1567 - 1763)
Required Level: 100
Required Strength: 625
Item Level: 1
20% Attack Speed
40% Hit Recovery
Adds 35-70 Magic Damage
Adds 50-100 Fire Damage
+(140 to 170)% Enhanced Defense
+(31 to 50) to Strength
(16 to 25)% Magic Find
Socketed (4)
Cinadide's Craft
(Paladin Honor Set)
if you use belt from same set.
Boots - what Victor said, same with other item slots.
Crafted body armors and barb helms can roll additional 25% to str each, on top of creepy shrine bonuses (up to 12% and 8% respectively, plus some flat str).
Use ko runes instead of diamonds. I don't know whether barb class charm merely enhances Runemaster skill, or adds its own layer of protection based on runes equipped, but you lose nothing with ko runes.