I did it in a slightly more space consumptive way.
I've got isboxer clickbars set for the casting of the spells.
Then I modified ORA3 to give me multiple cooldown windows.
I set each window to only show a specific cooldown and placing that bar-sized window next to its associated clickbar button.

ORA normally shows all cds in 1 window and they don't stay in the same place, hence the modified multi-window to allow for placement next to the clickbar buttons.