Size of grow tent for WaterFarm 8-Pack hydro kit?

I'm thinking of using this hydro kit: http://smile.amazon.com/gp/product/B002JLHSQW/ref=as_li_ss_tl

How big of a grow tent do I need? I'm between these two:

2x2 "Mother tent"
http://smile.amazon.com/Indoor-Grow-Tent-Protected-Waterproof/dp/B003ATF4WC/ref=sr_1_3

3.11x3.11 Grow tent:
http://smile.amazon.com/Indoor-Grow-Tent-Protected-Waterproof/dp/B002TIRKAE/ref=sr_1_2

The larger one doesn't fit in my closet, so I'm hoping the 2x2 one will work!

That system is far too big for a small closet. What are the actual closet dimensions? What is your venting plan? What do you have or plan for lights?

I'm guessing a $50 DWC system, and no tent, just a roll of mylar and double sided tape or staples will be your best option.

4ftx8ft is the size intended for that 8 site setup.

Thanks to both for your excellent replies.

@nomofatum, I got this hydro kit from the below grow kit.
I am drafting a new thread to be posted in the next few days in which I will describe all my goals & restrictions in detail and ask the community for guidance.

Kit: http://growersguidetocannabis.com/cheap-complete-cannabis-grow-kits/