Mystic Ranger2/Barb1(Lion Totem)/Crusader1/Knight of the Raven2/Crusader+1/Divine Crusader1/Knight of the Raven+1/Prestige Paladin3/Ordained Champion3/Divine version of Abjurant Champion5 (for the massive help to caster level).
or
Mystic Ranger2/Barb1(Lion Totem)/Crusader1/Knight of the Raven2/Crusader+1/Divine Crusader1/Knight of the Raven+1/Prestige Paladin2/Ordained Champion2/RKV7 (only 9 caster levels).
Mystic Ranger could be regular ranger if you want, you just have to take 4 levels to enter Knight of the Raven which is primarily to grant turning. Choosing the Good domain for Prestige Paladin entry. Prestige paladin gets access to paladin list and Ordained Champion specifically adds the war domain spells to your class list (unfortunately you don't get the abilities, so probably can't take the Holy Warrior feat). Burn the sun domain for a feat if you want.