I'm not overly familiar with Vuhdo.

An option I've used on some of my teams is two click macros.
Basically the tank and dps have identical click macros on say, 1 and 2.
However the Resto has a dps click on one of the keys but not on the other.
So... if you click 1, everyone does the dps.
But if you click 2, then everyone except the resto will do the dps.... which means you are free to heal as required.

I'd also consider running 4x Elemental, without any Resto.
And then go with 3 or 4x Lesser Healing Wave and 3 or 4x Chain Heal.
I'd lean to this as the stronger of the two methods.

My PvE team is Prot Paladin, 3x Elemental, 1x Demonology (Warlock).
And the 3x Elemental can easily heal all 5-man content.
Lesser Healing Wave is a complete heal on everyone else, but is maybe a 50% heal on the Paladin.
Chain Heal is used much less frequently, but it is pretty much the only other heal I use.

Mostly I run with Sanctuary on the Pally and Kings on the others.
But for more challenging content, its Sanctuary on the Pally and Wisdom on the others.
With a Runescroll for Fortitude to everyone and Drums for Mark of the Wild and Kings.
The scroll/drums aren't quite as strong as the real thing, but they're close.
And 3x Healing Stream is a lot of passive healing against AoE's.
Also resistance totems (and aura) help a lot as do the Cleansing Totems.