Adding veg tent, size?

So I have a 8x4 im using for everything, but I want to use it for just flowering. My question is, using a T5 setup, managing 10 plants in veg, What size tent should I run? I was debating a little 4x4, but was wondering if that would be too small? What do you guys think an appropriate sized veg tent is? I plan to have 10 plants flowering at all times.....Debating if I need extra room to set aside a mother or if it would be easiest just to take clippings from each crop and clone them.

How large do you veg your plants to and how often do you cycle your plants through your veg system?

Im going to veg my guys to about a meter tall, maybe more. and 3L pots sorry.
This is my first run, so im trying to plan ahead.

You will not need a mother if you take clones off your plants right before you switch them to flower.

2-3 weeks to get roots from your cuttings, veg for 5-6 weeks, and take cuttings before they go into flower.

Once you get a steady shcedule it will get easier for you.

Yeah thats what I was kinda thinking, but what about sized tents? the T5 is 4x2 itself lol. So theoretically how big of a tent would i need anything over 4x2 correct?

The thing with those t5 lights is the light footprint is about the same size as the light.
A 2'x4'x5' tent will work.
Go a little bigger, easier to control your temps and some elbow room.
Check this 1 out. http://www.ebay.com/itm/GRN-Elements-78-x-48-x-48-6-5-x-4-x-4-600D-Mylar-Non-Toxic-Grow-Tent-/190604774091?pt=LH_DefaultDomain_0&hash=item2c60ee0acb

Good Luck