Heya Gary, I'm in almost the same boat as you.
For our AIs, we bought the Director (very decent controller). We have an Apex controller that is currently being underused, lol. That being said, I probably would go with the Apex & VDM module or Apex & Director. I know I'm not much help, butttttttt it appears as though there are more (local) Apex users out here. :)
I also have a Digital Aquatics controller on my 80 running just my T5s & heater, it will probably be running that doser also, if necessary :)