Grow Op Equipment, AM I MISSING ANYTHING???

The tent is 8x4x6.5 , I just hope the fans will be enough to cool a 2000w setup. Does anyone else have a similar setup and advice?

I believe you should be fine with a 6" 440 CFM fan for 2000w, I cooled a single 600w with a 4" 140 CFM with no problems. I would be careful with the cheap filter that comes with the fan combo though, the one that came with my 4" fan was very small compared to the quality brands. It was only partially effective and didnt last long at all.

Which soil are you using? $40 seems kind of low.

Sounds like a fun grow. I wish you success!