How Many Would You Grow

How many plants would you grow with this set up for a good yield *using soil*

Dark Room Dr120 Tent 120 cm x 120 cm x 200 cm
5" Low power ruk fan with rhino pro filter
400w digital ballast, diamond reflector and mh bulb for veg
600w digital ballast, diamond reflector and sun master pro hps bulb for flower

Seeds
Sensi fem Northern Lights x Big Bud
GH fem Big Bang
Tga regular Jilly Bean

This is my first grow so any advice will be greatly appreciated

I started 4 close to same time and its great to see how different they grow. For your first grow do 4 diferent seeds if possible. Or 2 of one strain and 2 of the other. One seed usualy grows a bit diferent from the rest and is fun to watch. You will learn a lot after the grow and can eliminate any problems in the future when your ready to grow 8+

Peace

I would also suggest 4. So many growers, Including myself think that a higher plant count will increase yield. It took my stubborn ass 10 years to understand that "Less is More". Good luck to ya Sir