I've done WAR solo tank with WHM+SCH as healers. Haven't really tried 1 tank 1 heal composition yet with WAR tank but I'd like to. Tumults can be healed through with a single Divine Seal+Medica 2 (pop it way early for the first set of tumults so it'll be off cooldown by the 2nd set since you're pushing phases so fast), as long as people aren't getting hit by any other mechanics. I believe a good warrior far out-strips the enmity generation of any paladin, given proper cooldown usage, and you wouldn't have any enmity issues going WAR+WHM.