I understand the need to keep things small. Here is my suggestion, if your using 16oz cups its because you don't have much floorspace - however, given the amount of room you have, your SEVERELY limiting the amount of space the roots have to grow, you'll hit 2' alright, well more like 18" because of the amount of space the cups take up, but... you can get much more bang for your buck if you use a 10 gallon rubbermaid storage container, its about the same height as the 16oz cups, but your roots will have SO MUCH horizontal room, which will make sturdier main stalks, hence making thicker buds.

As far as lighting, if your going straight into 12/12 (which I understand to keep them small) I would suggest replacing all 7 of your CFL's with 6 60 watters, 4 2700's and 2 6500's, this will give you 360 watts and roughly 25k lumens. All this for only about $70 total in lights and the rubbermaid basket.

You said you're leaving it alone for now, can you post some pics? I'd love to see it. As far as fans, I think you've gone on overkill unless the doghouse is outside.

Good luck! I've seen one solocup grow from 12/12 would LOVE to see yours
low_rdr Reviewed by low_rdr on . Thoughts on my growing conditions? 2'x2'x2' grow area (converted doghouse) hence the name. Walls mylar lined 3x 4" fans one as an intake over a 2" hole in the grow floor. One at the ceiling drawing heat out and one behind the scenes pointing to the exit hole out the back. 7 cfl's 2 20 watters 1200 lumens each 6500k, 1 55 watt 3860 lumens 2700k, & 4 14 watters 900 lumens each 2700k as well for a total of 131 watts 9460 lumens. All but the 55 watter will be hung sideways, it will be hung straight down. All the lights are on a Rating: 5