I'm not sure if wires are getting crossed but you don't need the Ion director to dose 2 part. It is brand new and I'm not sure anyone has actually received theirs yet (people have been on the pre-order list for months so it will be some time before any who orders now will be able to get one).
If all you want to do is dose 2-part, you just need a standalone doser (you don't even need the profilux controller).
The dosing container is just a container. I used cheap plastic jars but you can buy generic pre-made reservoirs if you don't want to make your own.
If deciding between GHL or Apex controllers, you have to consider what you want them to do. Otherwise, you can just buy a doser.