Utilizing newer DLC items, we can now accurately cos play as the original Paladin Leeroy, down to Sanctus. Unfortunately Grant does not make a come back so the Sacred Chime Hammer, Iron King Hammer, or Giant Warrior Club has to do. Update: Wrathful Axe is basically Grant, it will replace all of the great hammers.
Lightning Infused Wrathful Axe, Loyce Shield, and Lightning Infused Dragon Chime.
Ivory King Set. Third Dragon 2+, Royal Soldier 2+, Ring of Regeneration, (Bracing Knuckle Ring 2+ / Lightning Clutch Ring / Sun Seal / Chloranthy Ring 2+).
Wrath of the Gods (1 slot), and the following of: Sunlight Blade (1 slot) and Replenishment (1 slot); or Resplendent Life (2 slots). Update: Force is also a great spell for utility purposes.
You have health regain and tons of damage, but are slow and heavy. Use Force for stability break, and WoTG as a panic button if you become surrounded. Buff and two hand your Wrathful Axe with the Loyce Shield on your back for true Leeroy Strategy. And remember: Make the Way of the White proud.