If it's helpfull at all, I have the Floe Riing 360 and use "Riing Plus" for the radiator fans and "Floe Riing RGB" for the pump. It all seems to work fine that way for me.
I've just been looking for the answer to this question myself. Just picked up the Floe Riing 360 and the iRGB Plus 850W PSU and would like to do something similar. Any luck?