Here are the pics of the new setup. Not sure how far back on the floor I can add more plants (since there's still room for another 9-12).
This is where I was wondering if it would be beneficial at all to ad more plants to the floorspace or if it would be too far from the light:
Here are the 2 air purifiers/ionizers for smell and to help with circulation. Planning on keeping them on the medium setting; each is for a 13x10 room: