If it is possible that SE stacks with it self (SE:I + SE:I etc.) and depending on if there is a SE cap or how high it is...
Look at this setup.. no raiding involved at all.
Holy Warrior Shoulders + Boots + Helm
8% Spell/CA Base Damage
16 DPS, 5 Crit Mit
2 Double Attack, 2 Melee Crit
120 Spell/CA
+3 Defense
(3) SE:III +15% Protection
Void Knight Gloves + Legs + Chest
38 Haste, -3% Cast time All Spells
5 Melee/Spell/Heal Crit
5 Crit Mit
3% Physical Damage Reduction
+10 Defense, +4 Parry
Stone Tower Jewelery Set (Ear + Wrist + Cloak)
+1 DA, +10 Parry, +9 Defense
+164 Mitigation
(3) SE:II +10% Protection
Throw in the shield from The Crucible:
+7 Parry
+3 Melee/Spell Crit
SE:III +15% Protection
1514 Protection
Add in AA SE Bonuses: +24%, +15%
Base + SE:II + Hero + SE:III + SE:III + AA = Base + 79%
1514 + 151.4 + 363.36 + 227.1 + 227.1 + 227.1 = 2710.06
So without raiding a single time.. a level 80 paladin who spends the time to get all those shards can have:
2710 Protection
+8% Spell Crit, +10% Melee Crit
+22 Defense, +21 Parry
20% Critical Mitigation (10% Base, 10% gear)
3% Damage Reduction
8% Base Spell / CA Damage
38 Haste
3% faster casting for all Spells
Still leaves 1 forearm, 2 rings, 1 earring, 1 neck, 1 wrist, 1 waist, and 2 charm slots open for additional gear as well.