Do you really think that radiant aura covers all healing needs? I mean, healing sparkles are cool... but it's kind of ridiculous to say that anyone would have their healing needs met simply by the aura.
As difficult as the OP's goals are to gel together in a versatile build, the idea behind it is really neat: applying as much passive solo/party healing as possible to stay in combat longer. Fists of light, radiant aura, curse of healing, healing amplification. I can sure understand why he would want these things. The concept would be even better as a party build than a solo build, since the heals would benefit more people for their cost in terms of other routes he could go.
The problem, as I have said in other posts, is the cost to the build as a whole to fit together these gimmicks.